Form 10-Q - Quarterly report [Sections 13 or 15(d)]

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)


☒	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2024


☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from __________ to ____________

Commission File Number: 001-40587

SIGHT SCIENCES, INC.

(Exact Name of Registrant as Specified in its Charter)


Delaware	80-0625749
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
4040 Campbell Ave, Suite 100 Menlo Park, CA	94025
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (877) 266-1144

N/A

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:

    Title of each class

    Trading
Symbol(s)

    Name of each exchange on which registered

    Common Stock, par value $0.001 per share

    SGHT

    The Nasdaq Global Select Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.


Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	☒	Smaller reporting company	☒
		Emerging growth company	☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

As of the close of business on July 26, 2024, the registrant had 50,307,299 shares of Common Stock, par value $0.001 per share, outstanding.

Table of Contents


		Page
	Special Note Regarding Forward-Looking Statements	3

PART I.	FINANCIAL INFORMATION	5

Item 1.	Condensed Consolidated Financial Statements	5
	Condensed Consolidated Balance Sheets (Unaudited)	5
	Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited)	6
	Condensed Consolidated Statements of Stockholders’ Equity (Unaudited)	7
	Condensed Consolidated Statements of Cash Flows (Unaudited)	9
	Notes to Condensed Consolidated Financial Statements (Unaudited)	10
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	22
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	32
Item 4.	Controls and Procedures	32

PART II.	OTHER INFORMATION	33

Item 1.	Legal Proceedings	33
Item 1A.	Risk Factors	33
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	34
Item 3.	Defaults Upon Senior Securities	34
Item 4.	Mine Safety Disclosures	34
Item 5.	Other Information	34
Item 6.	Exhibits	35
	Signatures	36

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

Unless the context otherwise requires, references in this Quarterly Report on Form 10-Q to the “Company,” “Sight Sciences,” “we,” “us” and “our” refer to Sight Sciences, Inc.

This Quarterly Report on Form 10-Q for the fiscal period ended June 30, 2024 (this "Quarterly Report") contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. We intend such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). All statements other than statements of historical facts contained in this Quarterly Report, including statements regarding our future results of operations or financial condition, business strategy and plans, and objectives of management for future operations, are forward-looking statements. In some cases, you can identify forward-looking statements because they contain words such as “anticipate,” “believe,” “contemplate,” “continue,” “could,” “estimate,” “expect,” “hope,” “intend,” “may,” “might,” “objective,” “ongoing,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “will,” or “would” or the negative of these words or other similar terms or expressions. These forward-looking statements include, but are not limited to, statements concerning the following:

•

our ability to obtain and maintain sufficient reimbursement for our products, including our ability to maintain competitive reimbursement for our Surgical Glaucoma products and establish sufficient reimbursement for our Dry Eye products;

•

our ability to compete effectively with existing competitors and new market entrants;

•

estimates of our total addressable market, revenue, expenses, liquidity, capital requirements, and needs for additional financing;

•

our ability to enter into and compete in new markets, and to expand the markets for our current products;

•

the impact of the strategic realignment of our operations, including our reduction in workforce and related cost-savings initiatives;

•

our ability to maintain compliance with our secured credit facility;

•

factors and trends impacting our financial results, including our product development approach, market education, and our ability to achieve operating and financial milestones with optimal capital efficiency;

•

our ability to scale our infrastructure to achieve our business objectives;

•

our ability to manage and grow our business by expanding our sales to existing customers or introducing our products to new customers;

•

our ability to establish and maintain intellectual property protection for our products or avoid claims of infringement;

•

potential effects of extensive government regulation;

•

our ability to protect and scale our intellectual property portfolio;

•

our ability to hire and retain key personnel;

•

our ability to obtain financing in future offerings;

•

the volatility of the trading price of our common stock;

•

our expectation regarding the time during which we will be an emerging growth company under the Jumpstart Our Business Startups Act (the "JOBS Act"); and

•

our ability to maintain proper and effective internal controls.

Actual events or results may differ from those expressed in forward-looking statements. As such, you should not rely on forward-looking statements as predictions of future events. We have based the forward-looking statements contained in this Quarterly Report primarily on our current expectations and projections about future events and trends that we believe may affect our business, financial condition, operating results, prospects, strategy, and financial needs. The outcome of the events described in these forward-looking statements is subject to risks,

uncertainties, assumptions, and other factors described in the section titled “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2023 filed with the Securities and Exchange Commission (the "SEC") on March 13, 2024 (our "Annual Report"), and elsewhere in this Quarterly Report. Moreover, we operate in a highly competitive and rapidly changing environment. New risks and uncertainties emerge from time to time, and it is not possible for us to predict all risks and uncertainties that could have an impact on the forward-looking statements contained in this Quarterly Report. The results, events and circumstances reflected in the forward-looking statements may not be achieved or occur, and actual results, events or circumstances could differ materially from those described in the forward-looking statements.

The forward-looking statements in this Quarterly Report are based upon information available to us as of the date of this Quarterly Report. While we believe that such information provides a reasonable basis for these statements, such information may be limited or incomplete. Our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all relevant information. These statements are inherently uncertain, and investors are cautioned not to unduly rely on these statements.

You should read this Quarterly Report and the documents that we reference in this Quarterly Report and have filed as exhibits to this Quarterly Report with the understanding that our actual future results, performance and achievements may be materially different from what we expect. We qualify all of our forward-looking statements by these cautionary statements. The forward-looking statements made in this Quarterly Report relate only to events as of the date on which the statements are made. We undertake no obligation to update any forward-looking statements made in this Quarterly Report to reflect events or circumstances after the date of this Quarterly Report or to reflect new information, actual results, revised expectations, or the occurrence of unanticipated events, except as required by law. We may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements, and you should not place undue reliance on our forward-looking statements.

PART 1. FINANCIAL INFORMATION

Item 1. Financial Statements

SIGHT SCIENCES, INC.

Condensed Consolidated Balance Sheets (Unaudited)

(in thousands, except share and per share data)


	June 30,			December 31,
	2024			2023
Assets
Current assets:
Cash and cash equivalents	$	118,177		$	138,129
Accounts receivable, net of allowance for credit losses of $1,059 and $1,186 at June 30, 2024 and December 31, 2023, respectively		19,919			14,289
Inventory, net		6,781			7,849
Prepaid expenses and other current assets		1,452			2,604
Total current assets		146,329			162,871
Property and equipment, net		1,489			1,640
Operating lease right-of-use assets		1,257			1,458
Other noncurrent assets		640			682
Total assets	$	149,715		$	166,651
Liabilities and stockholders’ equity
Current liabilities:
Accounts payable	$	1,923		$	1,731
Accrued compensation		5,394			4,528
Accrued and other current liabilities		5,971			3,774
Current portion - long-term debt, net		—			2,219
Total current liabilities		13,288			12,252
Long-term debt, net		33,770			31,708
Other noncurrent liabilities		1,019			2,476
Total liabilities		48,077			46,436
Commitments and contingencies (Note 6)
Stockholders’ equity:
Preferred stock, par value $0.001 per share; 10,000,000 shares authorized; no shares issued and outstanding as of June 30, 2024 and December 31, 2023		—			—
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 50,136,131 and 49,131,363 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively		50			49
Additional paid-in-capital		424,973			414,956
Accumulated deficit		(323,385	)		(294,790	)
Total stockholders’ equity		101,638			120,215
Total liabilities and stockholders’ equity	$	149,715		$	166,651

The accompanying notes are an integral part of these condensed consolidated financial statements.

SIGHT SCIENCES, INC.

Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited)

(in thousands, except share and per share data)


	Three Months Ended June 30,						Six Months Ended June 30,
	2024			2023			2024			2023
Revenue	$	21,370		$	23,471		$	40,635		$	42,296
Cost of goods sold		3,025			3,381			5,819			6,429
Gross profit		18,345			20,090			34,816			35,867
Operating expenses:
Research and development		4,316			5,221			8,952			9,890
Selling, general and administrative		26,680			30,056			53,239			58,731
Total operating expenses		30,996			35,277			62,191			68,621
Loss from operations		(12,651	)		(15,187	)		(27,375	)		(32,754	)
Investment income		1,526			1,793			3,174			3,602
Interest expense		(1,145	)		(1,349	)		(2,350	)		(2,625	)
Loss on debt extinguishment		—			—			(1,962	)		—
Other expense, net		(44	)		(3	)		(50	)		(22	)
Loss before income taxes		(12,314	)		(14,746	)		(28,563	)		(31,799	)
Provision for income taxes		15			8			32			22
Net loss and comprehensive loss	$	(12,329	)	$	(14,754	)	$	(28,595	)	$	(31,821	)
Net loss per share attributable to common stockholders, basic and diluted	$	(0.25	)	$	(0.30	)	$	(0.58	)	$	(0.66	)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted		49,903,386			48,536,310			49,694,825			48,471,153

The accompanying notes are an integral part of these condensed consolidated financial statements.

SIGHT SCIENCES, INC.

Condensed Consolidated Statements of Stockholders’ Equity (Unaudited)

(in thousands, except share data)


	Three Months Ended June 30, 2024
	Common Stock				Additional Paid-In			Accumulated			Total Stockholders’
	Shares		Amount		Capital			Deficit			Equity
Balance at March 31, 2024		49,565,200	$	50	$	420,215		$	(311,056	)	$	109,209
Issuance of common stock upon exercise of stock options		22,225		—		11			—			11
Issuance of common stock upon vesting of restricted stock units		316,416		—		—			—			—
Withholding taxes on net share settlement of restricted stock units		—		—		(20	)		—			(20	)
Employee stock purchase plan purchases		232,290		—		450			—			450
Stock-based compensation expense		—		—		4,317			—			4,317
Net loss		—		—		—			(12,329	)		(12,329	)
Balance at June 30, 2024		50,136,131		50		424,973			(323,385	)		101,638


	Six Months Ended June 30, 2024
	Common Stock				Additional Paid-In			Accumulated			Total Stockholders’
	Shares		Amount		Capital			Deficit			Equity
Balance at December 31, 2023		49,131,363	$	49	$	414,956		$	(294,790	)	$	120,215
Issuance of common stock upon exercise of stock options		155,183		—		156			—			156
Issuance of common stock upon vesting of restricted stock units		617,295		1		(1	)		—			—
Withholding taxes on net share settlement of restricted stock units		—		—		(20	)		—			(20	)
Warrant issuance		—		—		609			—			609
Employee stock purchase plan purchases		232,290		—		450			—			450
Stock-based compensation expense		—		—		8,823			—			8,823
Net loss		—		—		—			(28,595	)		(28,595	)
Balance at June 30, 2024		50,136,131		50		424,973			(323,385	)		101,638

The accompanying notes are an integral part of these condensed consolidated financial statements.


	Three Months Ended June 30, 2023
	Common Stock				Additional Paid-In			Accumulated			Total Stockholders’
	Shares		Amount		Capital			Deficit			Equity
Balance at March 31, 2023		48,450,378	$	48	$	402,638		$	(256,310	)	$	146,376
Issuance of common stock upon exercise of stock options		56,994		—		122			—			122
Issuance of common stock upon vesting of restricted stock units		63,437		1		—			—			1
Withholding taxes on net share settlement of restricted stock units		—		—		(17	)		—			(17	)
Employee stock purchase plan purchases		78,534		—		661			—			661
Stock-based compensation expense		—		—		3,742			—			3,742
Net loss		—		—		—			(14,754	)		(14,754	)
Balance at June 30, 2023		48,649,343		49		407,146			(271,064	)		136,131


	Six Months Ended June 30, 2023
	Common Stock				Additional Paid-In			Accumulated			Total Stockholders’
	Shares		Amount		Capital			Deficit			Equity
Balance at December 31, 2022		48,298,138	$	48	$	399,271		$	(239,243	)	$	160,076
Issuance of common stock upon exercise of stock options		103,202		—		171			—			171
Issuance of common stock upon vesting of restricted stock units		169,469		1		—			—			1
Withholding taxes of net share settlement of restricted stock units		—		—		(222	)		—			(222	)
Employee stock purchase plan purchases		78,534		—		661			—			661
Stock-based compensation expense		—		—		7,265			—			7,265
Net loss		—		—		—			(31,821	)		(31,821	)
Balance at June 30, 2023		48,649,343		49		407,146			(271,064	)		136,131

The accompanying notes are an integral part of these condensed consolidated financial statements.

SIGHT SCIENCES, INC.

Condensed Consolidated Statements of Cash Flows (Unaudited)

(in thousands)


	Six Months Ended
	June 30,
	2024			2023
Cash flows from operating activities
Net loss	$	(28,595	)	$	(31,821	)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization		378			295
Accretion of debt discount and amortization of debt issuance costs		168			294
Stock-based compensation expense		8,823			7,265
Provision for credit losses		104			40
Provision for excess and obsolete inventories		(91	)		208
Noncash operating lease expense		325			489
Loss on disposal of property and equipment		—			66
Noncash loss on extinguishment of debt		1,033			—
Changes in operating assets and liabilities:
Accounts receivable		(5,734	)		(2,995	)
Inventory		1,159			(2,001	)
Prepaid expenses and other current assets		1,151			1,622
Other noncurrent assets		(49	)		(156	)
Accounts payable		627			190
Accrued compensation		866			(1,632	)
Accrued and other current liabilities		1,909			(2,894	)
Other noncurrent liabilities		(1,328	)		158
Net cash used in operating activities		(19,254	)		(30,872	)
Cash flows from investing activities
Purchases of property and equipment		(197	)		(223	)
Net cash used in investing activities		(197	)		(223	)
Cash flows from financing activities
Net proceeds from Hercules Loan Agreement		34,526			—
Repayment of MidCap Loan Agreement		(35,375	)		—
Debt issuance costs		(238	)		—
Proceeds from employee stock purchase plan purchases		450			661
Taxes paid on net share settlement of restricted stock units		(20	)		(222	)
Proceeds from exercise of common stock options		156			171
Net cash (used in) provided by financing activities		(501	)		610
Net change in cash and cash equivalents		(19,952	)		(30,485	)
Cash and cash equivalents at beginning of period		138,129			185,000
Cash and cash equivalents at end of period	$	118,177		$	154,515

Supplemental disclosure of cash flow information
Cash paid for interest	$	2,024		$	2,066
Supplemental noncash disclosure of investing and financing activities
Acquisition of property and equipment included in accounts payable and accrued liabilities	$	—		$	147
Common stock warrants issued upon execution of Hercules Loan Agreement	$	609		$	—

The accompanying notes are an integral part of these condensed consolidated financial statements.

SIGHT SCIENCES, INC.

Notes to Condensed Consolidated Financial Statements (Unaudited)

Note 1. Company and Nature of Business

Description of Business

Sight Sciences, Inc. (the “Company”) was incorporated in the State of Delaware in 2010 and is headquartered in Menlo Park, California. The Company is an ophthalmic medical device company focused on the development and commercialization of surgical and nonsurgical technologies for the treatment of prevalent eye diseases. The Company’s mission is to develop transformative, interventional technologies that allow eyecare providers to procedurally elevate the standards of care—empowering people to keep seeing.

The Company's product portfolio aligns with its two reportable operating segments: Surgical Glaucoma and Dry Eye. The products for the Surgical Glaucoma segment include the OMNI® Surgical System ("OMNI"), which is an implant-free, handheld, single-use, therapeutic technology that enables ophthalmic surgeons to perform a comprehensive procedure to reduce intraocular pressure in adult patients with primary open angle glaucoma, and the SION® Surgical Instrument ("SION"), a bladeless, manually operated device used in ophthalmic surgical procedures to excise trabecular meshwork. The product portfolio for the Dry Eye segment consists of the TearCare® System ("TearCare") for ophthalmologists and optometrists. TearCare is a proprietary, interventional, dry eye device designed to melt and facilitate the comprehensive removal of meibomian gland obstructions and restore gland functionality and healthy oil production for adult patients with evaporative dry eye disease due to meibomian gland dysfunction (“MGD”) when used in conjunction with manual expression of the meibomian glands, enabling clearance of gland obstructions by physicians to address the leading cause of dry eye disease.

Significant Risks and Uncertainties

Since inception, the Company has incurred losses and negative cash flows from operations. As of June 30, 2024, the Company had an accumulated deficit of $323.4 million and recorded a net loss of $28.6 million for the six months then ended and expects to incur additional losses in the future. If the Company’s revenue levels from its products are not sufficient or if the Company is unable to secure additional funding when desired, the Company may need to delay the development of its products, scale back its business and operations, or change its business strategy.

The Company believes that its existing sources of liquidity will satisfy its working capital and capital requirements for at least 12 months from the issuance of its unaudited condensed consolidated financial statements. Any failure to generate increased revenue, achieve improved gross margins, or control operating costs could require the Company to raise additional capital through equity or debt financing. Such additional financing may not be available on acceptable terms, or at all, and could require the Company to modify, delay, or abandon some of its planned future expansion or expenditures or reduce some of its ongoing operating costs, which could harm its business, operating results, financial condition, and ability to achieve its intended business objectives.

Note 2. Summary of Significant Accounting Policies

Basis of Presentation

The condensed consolidated financial statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States of America ("US GAAP") applicable to interim periods and pursuant to the instructions to Form 10-Q and Article 10 of Regulation S-X. The Company’s condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, Sight Sciences UK, Ltd and Sight Sciences GmbH. All intercompany balances and transactions have been eliminated in consolidation.

The unaudited condensed consolidated financial statements have been prepared on a basis consistent with the audited consolidated financial statements. In the opinion of management, the unaudited condensed consolidated financial statements reflect all adjustments, which include only normal recurring adjustments, necessary for the fair presentation of the Company's financial information contained herein. The condensed consolidated balance sheet as of December 31, 2023 is derived from the Company's consolidated audited financial statements as of that date. These interim condensed consolidated financial statements do not include all disclosures required by US GAAP and should be read in conjunction with the Company's audited consolidated financial statements and the accompanying

notes thereto for the fiscal year ended December 31, 2023, which are contained in the Annual Report. The Company's results of operations for the six months ended June 30, 2024 are not necessarily indicative of the results to be expected for the year ending December 31, 2024 or for any other interim period.

Use of Estimates

The preparation of the unaudited condensed consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent liabilities at the date of the financial statements, and the reported amounts of revenues and expense during the reporting period. The most significant estimates related to the provision for credit losses, inventory excess and obsolescence, determination of the fair value of stock option grants, and provisions for income taxes and contingencies. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, and makes adjustments when facts and circumstances dictate. These estimates are based on information available as of the date of the financial statements. Actual results could differ from these estimates and such differences could be material to the Company’s financial position and results of operations.

New Accounting Pronouncements

Accounting Standards Recently Adopted

During the six-month period ended June 30, 2024, there were no significant Accounting Standard Updates ("ASUs") issued that were adopted.

Accounting Standards Not Yet Adopted

In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosure. The ASU updates reportable segment disclosure requirements, primarily through requiring enhanced disclosures about significant segment expenses and information used to assess segment performance. The ASU is effective for fiscal years beginning after December 15, 2023, and interim period within fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the impact of adopting this ASU on its disclosures.

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The ASU includes amendments requiring enhanced income tax disclosures, primarily related to standardization and disaggregation of rate reconciliation categories and income taxes paid by jurisdiction. The guidance is effective for fiscal years beginning after December 15, 2024, with early adoption permitted, and should be applied either prospectively or retrospectively. The Company is currently evaluating the impact of adopting this ASU on its disclosures.

As of June 30, 2024, there are no additional ASUs issued and not yet adopted that are expected to have a material impact on the Company's financial statements and related disclosures.

Note 3. Fair Value Measurements

The Company reports all financial assets and liabilities and nonfinancial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The authoritative guidance establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to measurements involving significant unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are as follows:

Level 1—Inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.

Level 2—Inputs are observable, unadjusted quoted prices in active markets for similar assets or liabilities, unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that

are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities.

Level 3—Inputs are unobservable inputs for the asset or liability. The level in the fair value hierarchy within which a fair value measurement in its entirety is based on the lowest-level input that is significant to the fair value measurement in its entirety.

The Company's cash and cash equivalents included Level 1 investments in treasury securities of $109.3 million and $129.1 million as of June 30, 2024 and December 31, 2023, respectively. These securities are classified as held-to-maturity and all have been purchased with original maturities of 90 days or less. Held-to-maturity debt securities are recorded at amortized cost in the financial statements.


	June 30, 2024
	Amortized Cost		Unrealized Gains		Unrealized Losses		Aggregate Fair Value
U.S. treasury securities	$	109,300	$	8	$	—	$	109,308


	December 31, 2023
	Amortized Cost		Unrealized Gains		Unrealized Losses		Aggregate Fair Value
U.S. treasury securities	$	129,113	$	28	$	—	$	129,141

The Company measures the fair value of outstanding debt for disclosure purposes on a recurring basis. As of June 30, 2024 and December 31, 2023, total debt of $33.8 million and $33.9 million is reported at amortized cost, respectively. This outstanding debt is classified as Level 2 as it is not actively traded. The amortized cost of the outstanding debt approximates the fair value.

The Company measures the fair value of the unissued common stock warrants to be issued pursuant to the Hercules Loan Agreement using the Black-Scholes option pricing method. These are classified as Level 3 liabilities, with an overall value of less than $0.1 million as of June 30, 2024. The unissued warrants are remeasured at each reporting date following execution of the Hercules Loan Agreement. See Note 5, Debt for additional information regarding the common stock warrants.

The financial statements as of June 30, 2024 and December 31, 2023 do not include any assets or liabilities that are measured at fair value on a nonrecurring basis.

Note 4. Balance Sheet Components

Property and Equipment, Net

Property and equipment, net consist of the following (in thousands):


	As of June 30,			As of December 31,
	2024			2023
Tools and equipment	$	2,009		$	2,010
Computer equipment and software		37			37
Furniture and fixtures		323			323
Leasehold improvements		38			38
Construction in process		995			859
		3,402			3,267
Less: Accumulated depreciation		(1,913	)		(1,627	)
Property and equipment, net	$	1,489		$	1,640

Depreciation expense was $0.1 million and $0.3 million for the three and six months ended June 30, 2024, respectively. Depreciation expense was $0.1 million and $0.3 million for the three and six months ended June 30, 2023, respectively.

Accrued and Other Current Liabilities

Accrued and other current liabilities consist of the following (in thousands):


	As of June 30,		As of December 31,
	2024		2023
Accrued expenses	$	3,772	$	1,639
Current portion of lease liabilities		508		573
Short-term interest payable		316		375
Other accrued liabilities		1,375		1,187
Total accrued and other current liabilities	$	5,971	$	3,774

Other Noncurrent Liabilities

Other noncurrent liabilities consist of the following (in thousands):


	As of June 30,		As of December 31,
	2024		2023
Long-term interest payable	$	196	$	1,524
Noncurrent portion of lease liabilities		747		914
Other noncurrent liabilities		76		38
Total other noncurrent liabilities	$	1,019	$	2,476

Note 5. Debt

Hercules Capital Loan Agreement

In January 2024, the Company entered into a Loan and Security Agreement (the “Hercules Loan Agreement”), with Hercules Capital, Inc. (“Hercules”) and certain of its affiliates (collective with Hercules, the “Lenders”), which provides for a senior secured term loan facility in the aggregate principal amount of up to $65.0 million. An initial tranche of $35.0 million (the “Initial Loan”) was funded under the Hercules Loan Agreement on January 22, 2024 (the “Closing Date”). In addition to the Initial Loan, the Hercules Loan Agreement provides for additional tranches as follows: $5.0 million available in a single draw through December 15, 2024, $10.0 million available to draw upon the achievement of certain performance milestones through September 15, 2025, and $15.0 million available for the Company to draw on through the interest-only period in increments of $5.0 million, subject to the sole approval of Hercules' investment committee (such tranche loans together with the Initial Loan, the “Term Loans”).

The Hercules Loan Agreement includes a maturity date of July 1, 2028, with an interest only period running for the first 30 months of the agreement term, extendable for an additional 6 months for a total of 36 months upon the achievement of certain milestones. The Term Loans accrue interest at a floating annual rate of the greater of 10.35% or the Wall Street Journal prime rate plus 2.35%, with the initial interest rate under the Term Loans equal to 10.85%. The final payment fee is set at 5.95% of the funded balance, which has been partially accrued and recorded as a long-term interest payable in other noncurrent liabilities of $0.2 million as of June 30, 2024. In conjunction with the funding of the Initial Loan, the Company issued warrants to the Lenders to purchase up to an aggregate of 135,686 shares of our common stock at an exercise price of $5.159 per share, which were recorded and classified as equity. Each warrant is exercisable for a period of seven years from the date of issuance.

The obligations under the Hercules Loan Agreement are guaranteed by the Company and its future subsidiaries, subject to exceptions for certain foreign subsidiaries. The obligations under the agreement are secured by substantially all of the Company's assets, including its material intellectual property. Additionally, the Company is subject to customary affirmative and negative covenants, including covenants that limit or restrict the ability of the Company to, among other things, incur indebtedness, grant liens, merge or consolidate, make investments, dispose of assets, make acquisitions, pay dividends or make distributions, repurchase stock and enter into certain transactions with affiliates, in each case subject to certain exceptions. The Company is also subject to certain minimum cash and revenue covenants under the Hercules Loan Agreement. The Company was in compliance with all covenants as of June 30, 2024.

MidCap Loan Agreement

The Company had credit and security agreements with certain entities affiliated with MidCap Financial Services (such entities collectively, “MidCap”), which provided for a $35.0 million senior secured term loan (the “MidCap Term Loan”). In January 2024, the Company terminated the Amended and Restated Credit and Security Agreement (Term Loan) (the “MidCap Term Loan Agreement”) evidencing the MidCap Term Loan and paid off in full the secured obligations thereunder in connection with its entry into the Hercules Loan Agreement. The Company recorded a loss on the extinguishment of debt of $2.0 million during the six months ended June 30, 2024.

The commitment obligations under the MidCap Term Loan Agreement were guaranteed by the Company’s current and future subsidiaries, subject to exceptions for certain foreign subsidiaries, and secured by substantially all assets of the Company, including material intellectual property. The MidCap Term Loan Agreement had a maturity date of November 1, 2025, and principal payments under the Term Loan were scheduled to commence in December 2024. In addition, the MidCap Term Loan Agreement included a stated floating interest rate that was reserve-adjusted Secured Overnight Finance Rate, plus 7.00%, and a provision for a final payment fee of 6.0% of the $35.0 million MidCap Term Loan balance, which had been partially accrued and recorded as a long-term interest payable in other noncurrent liabilities of $1.5 million as of December 31, 2023.

Maturities Schedule

Long-term and short-term debt as of June 30, 2024 and December 31, 2023, respectively, was as follows (in thousands):


	As of June 30,			As of December 31,
	2024			2023
Hercules Initial Loan	$	35,000		$	—
MidCap Term Loan		—			35,000
Total principal payments due		35,000			35,000
Less: debt discount related to warrant liability and issuance costs		(1,230	)		(1,073	)
Total amounts outstanding		33,770			33,927
Less: current portion		—			(2,219	)
Long-term debt, net	$	33,770		$	31,708

The repayment schedule relating to the Hercules Initial Loan as of June 30, 2024, is as follows (in thousands):


	Amount
2024 (remainder)		—
2025		—
2026		6,651
2027		17,283
Thereafter		11,066
Total repayments	$	35,000

Note 6. Commitments and Contingencies

Operating Lease Obligations

The Company’s leases include facility leases and equipment leases. In determining the present value of lease payments, the Company uses its incremental borrowing rate based on the information available at the lease commencement date if the rate implicit in the lease is not readily determinable. The Company’s incremental borrowing rate represents the interest rate that the Company would expect to incur at lease commencement to borrow an amount equal to the lease payments on a collateralized basis with similar terms and payments, in an economic environment where the leased asset is located. In determining the lease term, the Company includes all renewal options that are reasonably probable to be executed.

The Company leases its corporate headquarters in Menlo Park, California. The lease commenced in August 2021 and was originally for a term of 37 months from the commencement date. In December 2023, the Company

entered into an amendment to the lease, extending the lease term an additional 26 months. Upon signing the amendment, the Company recorded an aggregate lease right-of-use ("ROU") asset and lease liability of $1.2 million. The lease ROU asset and corresponding liability were estimated using a weighted-average incremental borrowing rate of 11.40%. Total base rent for the remaining 34 months under the amended lease agreement is approximately $1.5 million.

During the fourth quarter of 2022, the Company entered into a supply agreement that was expected to last approximately 18 months. In January 2024, the term was extended through December 31, 2024. The supply agreement contained provisions that, when evaluated, indicated an embedded lease was present within the agreement and the Company recorded an aggregate lease ROU asset and lease liability of $0.7 million. The lease ROU asset and corresponding lease liability were estimated using a weighted-average incremental borrowing rate of 10.75%. Total base rent under the agreement is approximately $0.7 million.

The Company recognizes rent expense on a straight-line basis over the noncancelable lease term. The Company’s rent expense was $0.2 million and $0.3 million for the three months ended June 30, 2024 and 2023, respectively. The Company’s rent expense was $0.4 million and $0.6 million for the six months ended June 30, 2024 and 2023, respectively. As of June 30, 2024, the weighted average remaining lease term for the leases was 2.2 years.

Operating lease expense and supplemental cash flow information related to operating leases for the three months ended June 30, 2024 and 2023 were as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Operating lease expense	$	195	$	288	$	390	$	581
Cash paid for operating leases		210		293		420		590

Aggregate future minimum lease payments as of June 30, 2024, under these noncancelable operating leases were as follows (in thousands):


	As of June 30,
	2024
2024 (remainder)		321
2025		618
2026		497
2027		0
Total future minimum lease payments	$	1,436
Less: imputed interest		(181	)
Present value of future minimum lease payments	$	1,255
Less: current portion of operating lease liability		(508	)
Noncurrent portion of lease liabilities	$	747

Legal Proceedings

On September 16, 2021, the Company filed suit in the U.S. District Court for the District of Delaware (C.A. No. 1:21-cv-01317) (the “Court”) alleging that Ivantis, Inc. (“Ivantis”) directly and indirectly infringes the Company’s U.S. Patent Nos. 8,287,482, 9,370,443, 9,486,361, and 10,314,742 by making, using, selling, and offering for sale the Hydrus® Microstent. The Company’s complaint seeks money damages and injunctive relief. On January 24, 2022, Ivantis asserted counterclaims requesting declaratory judgments that the Company's asserted patents-in-suit are not infringed and/or invalid. On August 1, 2022, the Company filed an amended complaint alleging that Alcon Inc., Alcon Vision, LLC and Alcon Research, LLC (collectively, “Alcon”) infringe the four originally asserted patents by making, using, selling, and offering for sale the Hydrus® Microstent, and that all defendants also infringe U.S. Patent No. 11,389,328. The defendants asserted counterclaims requesting declaratory judgments that the Company’s asserted patents-in-suit are not infringed and/or are invalid. In September 2022, Ivantis and Alcon filed petitions with the U.S. Patent Office seeking inter partes review of U.S. Patent Nos. 8,287,482, 9,370,443, 9,486,361, and 10,314,742 (IPR2022-01529, IPR2022-01530, IPR2022-01533, IPR2022-01540), each of which the U.S. Patent Office denied for raising prior art references and invalidity arguments that

were cumulative of those previously considered by the U.S. Patent Office. On April 26, 2024, at the conclusion of a five-day jury trial, the Company was awarded a positive jury trial verdict of $34 million, comprised of $5.5 million in lost profits damages and $28.5 million in royalty damages for commercial sales of the Hydrus Microstent for the period between its commercial launch through trial. The patents at issue were U.S. Patent Nos. 8,287,482, 9,370,443, and 11,389,328. The Court is considering post-trial briefings by both parties, including with respect to potential enhancements to the damages and other remedies, and the Court's final judgment will be subject to appeal. The Company is presently unable to predict the outcome of this lawsuit or to reasonably estimate the potential financial impact of the lawsuit on the Company, if any.

In addition to the foregoing, from time to time, the Company is subject to legal claims, regulatory matters and contingencies in the ordinary course of business. Accruals for these matters are reflected in the financial statements based on management’s assessment, including the advice of legal counsel, of the expected outcome of these matters. Liabilities for estimated losses are accrued if the potential losses from any legal proceedings, regulatory matters or contingencies are considered probable and the amounts can be reasonably estimated. Significant judgment is required in both the determination of probability of loss and the determination as to whether the amount can be reasonably estimated. Accruals are based only on information available at the time of the assessment due to the uncertain nature of such matters. As additional information becomes available, management reassesses potential liabilities related to legal claims, regulatory matters and contingencies, and may revise its previous estimates, which could materially affect the Company’s results of operations in a given period.

Except as described above, as of June 30, 2024 and December 31, 2023, the Company was not a party to any legal proceedings, regulatory matters, or other disputes or claims which, if determined adversely, would, individually or taken together, have a material adverse effect on the Company’s business, financial condition, operating results, liquidity, or future prospects.

Indemnification

In the normal course of business, the Company enters into contracts and agreements that contain a variety of representations and warranties and provide for general indemnifications. The Company’s exposure under these agreements is unknown because it involves claims that may be made against the Company in the future, but that have not yet been made. To date, the Company has not paid any claims or been required to defend any action related to its indemnification obligations. However, the Company may record charges in the future as a result of these indemnification obligations.

The Company indemnifies each of its directors and officers for certain events or occurrences, subject to certain limits, while the director is or was serving at the Company’s request in such capacity, as permitted under Delaware law and in accordance with its certificate of incorporation and bylaws. The term of the indemnification period lasts as long as a director or officer may be subject to any proceeding arising out of acts or omissions of such director or officer in such capacity. The maximum amount of potential future indemnification is unlimited; however, the Company currently holds director and officer liability insurance. This insurance allows the transfer of risk associated with the Company’s exposure and may enable it to recover a portion of any future amounts paid. The Company believes the fair value of these indemnification obligations is minimal. Accordingly, the Company has not recognized any liabilities relating to these obligations as of June 30, 2024 and December 31, 2023.

Note 7. Stockholders' Equity

Common Stock

The Company’s certificate of incorporation provides for 200,000,000 authorized shares of common stock, par value $0.001 per share, and 10,000,000 authorized shares of preferred stock, par value $0.001 per share. The holders of common stock are entitled to receive dividends whenever funds are legally available, when and if declared by the board of directors. As of June 30, 2024, no dividends have been declared. Each share of common stock is entitled to one vote.

At June 30, 2024 and December 31, 2023, the Company had reserved common stock for future issuances as follows:


	June 30,		December 31,
	2024		2023
Common stock available for future grants		5,926,286		6,033,176
Common stock options issued and outstanding		4,675,830		4,980,190
Restricted stock units outstanding		4,785,524		2,721,361
Shares available for future purchase under employee stock purchase plan		1,979,540		1,488,227
Total		17,367,180		15,222,954

Common Stock Warrants

In conjunction with the funding of the Initial Loan under the Hercules Loan Agreement, the Company issued common stock warrants to the Lenders to purchase up to an aggregate of 135,686 shares of our common stock at an exercise price of $5.159 per share. Each warrant is exercisable for up to seven years from the date of issuance. The warrants are classified as equity. During the six months ended June 30, 2024, the fair value of the issued warrants recorded was $0.6 million, which was calculated using the Black-Scholes option pricing model. These warrants were recorded at fair value upon their issuance in additional paid-in capital in the condensed consolidated balance sheet. The issued warrants are not remeasured after the issuance date.

If the additional Term Loans are funded, the Company will be obligated to issue to the Lenders additional warrants to purchase common stock in an amount equal to 2.0% of the funded balance of each tranche, divided by the exercise price on the date the Company draws funds from such tranche, or the issuance date. The exercise price will be calculated using the five-day volume-weighted average stock price as of such date.

The unissued warrants do not meet the requirements for classification in equity, and are recorded as liabilities in other noncurrent liabilities in the financial statements. The fair value of the unissued common stock warrants was calculated using the Black-Scholes option pricing method and they were recorded at fair value upon the funding of the Hercules Loan Agreement. The unissued warrants are remeasured at each reporting date after the issuance date. According to the fair value measurement criteria, the unissued warrants are considered Level 3 liabilities, with an overall value of less than $0.1 million as of June 30, 2024.

Note 8. Equity Incentive Plans

2011 Stock Option Plan and 2021 Incentive Award Plan

In 2011, the Company established its 2011 Stock Option Plan (the “2011 Plan”) that provided for the granting of stock options to employees and nonemployees of the Company.

In July 2021, the board of directors and stockholders adopted and approved the 2021 Incentive Award Plan, (the “2021 Plan”). Under the 2021 Plan, the Company has the ability to issue incentive stock options ("ISOs"), nonqualified stock options ("NSOs"), stock appreciation rights, dividend equivalent rights, restricted stock awards, and restricted stock unit awards ("RSUs"). Options under the 2021 Plan can typically be granted for periods of up to ten years. For stock options granted to a grantee who, at the time the option is granted, owned stock representing more than 10% of the voting power of all classes of stock of the Company (or any parent or subsidiary of the Company), the term of the stock option may be granted for periods of up to five years. The ISOs and NSOs will be granted at a price per share not less than the fair value at the date of grant. The exercise price of a stock option granted to a 10% stockholder shall be not less than 110% of the grant date fair value of the shares. Options granted to new hires generally vest over a four-year period, with 25% of the shares vesting on the first anniversary of the grant date and the remaining shares vesting in 36 equal monthly installments thereafter; options granted as merit awards generally vest in 48 equal monthly installments following the grant date. RSUs granted generally vest over a four-year period with straight-line vesting in equal amounts.

The Company initially reserved 5,200,000 shares of common stock for future issuance under the 2021 Plan. This initial reserve is subject to annual increase on the first day of each calendar year beginning on January 1, 2022 and ending on and including January 1, 2031. These annual increases are equal to the lesser of (i) 5% of the

aggregate number of shares of common stock outstanding on the final day of the immediately preceding calendar year and (ii) such smaller number of shares of common stock as determined by the Board, subject to certain limitations. Pursuant to the evergreen provision, the initial share reserve was increased by 2,456,568 shares and 2,414,907 shares on January 1, 2024 and 2023, respectively.

The 2011 Plan was superseded by the 2021 Plan at the time of the IPO and no further grants have been made under the 2011 Plan from the date the 2021 Plan became effective. The terms under the 2011 Plan are consistent with those described above for the 2021 Plan.

As of June 30, 2024 and December 31, 2023 there were 5,926,286 shares and 6,033,176 shares, respectively, of common stock available for issuance under the 2021 Plan.

Stock Option Awards

The following table summarizes stock option activity under the 2021 Plan during the periods presented:


	Number of Shares			Weighted-Average Exercise Price		Weighted-Average Contractual Term (in years)		Average Intrinsic Value (in thousands)
Balances as of December 31, 2023		4,980,190		$	9.00		7.4	$	5,924
Grants		7,377			4.43
Forfeited/cancelled		(156,554	)		9.38
Exercised/released		(155,183	)		1.00
Balances as of June 30, 2024		4,675,830		$	9.25		7.2	$	7,271
Vested and exercisable as of June 30, 2024		2,887,287		$	9.45		6.4	$	4,419
Vested and expected to vest as of June 30, 2024		4,675,830		$	9.25		7.2	$	7,271

During the three months ended June 30, 2024 and 2023, the Company recorded stock-based compensation expense of $1.9 million and $2.3 million related to stock option awards, respectively. During the six months ended June 30, 2024 and 2023, the Company recorded stock-based compensation expense of $3.8 million and $4.5 million related to stock option awards, respectively. The weighted-average grant-date fair values of options granted during the six months ended June 30, 2024 and 2023 was $2.71 and $6.94 per share, respectively.

The aggregate intrinsic value of options exercised was $0.1 million and $0.7 million during the three and six months ended June 30, 2024, respectively. The aggregate intrinsic value was calculated as the difference between the exercise prices of the underlying options and the estimated fair value of the common stock on the date of exercise. As of June 30, 2024, the unrecognized stock-based compensation expense relating to unvested options was $10.0 million, which is expected to be recognized over a weighted-average period of 1.4 years.

Determination of Fair Value

The Company estimated the grant date fair value of stock options using the Black-Scholes option-pricing model, which requires the use of high subjective and complex valuation assumptions to determine the fair value of stock-based awards, including the option’s expected term, the expected volatility of the underlying stock, the risk-free interest rate, and the expected dividend yield. For the purposes of the Black-Scholes valuation model, the Company used the simplified method for determining the expected term of the granted options. The simplified method was used since the Company does not have adequate historical data to utilize in calculating the expected term of options. The fair value for options granted was calculated using the following weighted average assumptions:


	Three Months Ended June 30,		Six Months Ended June 30,
	2024	2023	2024	2023
Expected term (in years)	6.13	6.03 – 6.07	6.13	5.60 – 6.07
Expected volatility	61.67%	78.53% – 79.60%	61.67%	78.53% – 79.73%
Risk-free interest rate	4.28%	3.48% – 3.65%	4.28%	3.48% – 3.67%
Dividend yield	–	–	–	–

Restricted Stock Units

RSUs are share awards that entitle the holder to receive shares of common stock upon vesting. The RSUs cannot be transferred, and the awards are subject to forfeiture if the holder’s employment terminates prior to the release of the vesting restrictions. The RSUs generally vest either (i) annually over a four-year period with straight-line vesting in equal amounts, or (ii) quarterly over a four-year period with straight-line vesting in equal amounts, in each case provided the holder provides continuous services to the Company. The fair value of the RSUs is equal to the closing price of the Company’s common stock on the grant date.

The following table summarizes restricted share award activity:


	Number of Shares			Weighted-Average Grant Date Fair Value Per Share
Outstanding, December 31, 2023		2,721,361		$	7.61
Grants		2,875,178			4.43
Forfeited/cancelled		(162,543	)		6.42
Vested		(648,472	)		8.78
Outstanding, June 30, 2024		4,785,524		$	5.57

During the three months ended June 30, 2024 and 2023, the Company recorded stock-based compensation expense of $2.3 million and $1.4 million, respectively, related to the RSUs. During the six months ended June 30, 2024 and 2023, the Company recorded stock-based compensation expense of $4.6 million and $2.5 million, respectively, related to the RSUs. As of June 30, 2024, there was $23.4 million of total unrecognized stock-based compensation expense relating to the RSUs that is expected to be recognized over a weighted-average period of 2.9 years.

Employee Stock Purchase Plan

In July 2021, the board of directors and stockholders adopted and approved the 2021 Employee Stock Purchase Plan (the “ESPP”). The Company initially reserved 850,000 shares of common stock for future issuance under the ESPP. This initial reserve is subject to annual increase on the first day of each calendar year beginning on January 1, 2022 and ending on and including January 1, 2031. These annual increases shall be equal to the lesser of (i) 1% of the aggregate number of shares of common stock outstanding on the final day of the immediately preceding calendar year and (ii) such smaller number of shares of common stock as determined by the Board, subject to certain limitations. Pursuant to the evergreen provision, the initial share reserve was increased by 491,313 and 482,981 shares on January 1, 2024 and 2023, respectively.

The Company has two offering periods annually, running for six months, with the first offering period beginning in the second quarter, and the second offering period beginning in the fourth quarter. The purchase of shares for participants in the ESPP occurs at the conclusion of each offering period.

During the six months ended, June 30, 2024, participants in the ESPP purchased 232,290 shares for a total of $0.5 million. As of June 30, 2024, the Company has collected payroll withholdings of $0.1 million in the current offering period for the purchase of shares under the ESPP. The Company recorded stock-based compensation expense associated with the ESPP of $0.2 million and $0.1 million for the three months ended June 30, 2024 and 2023, respectively. The Company recorded stock-based compensation expense associated with the ESPP of $0.3 million and $0.3 million for the six months ended June 30, 2024 and 2023, respectively.

As of June 30, 2024, there were 1,979,540 shares of common stock available for issuance under the ESPP.

The fair value of shares to be issued under the ESPP was estimated using the Black-Scholes valuation model with the following assumptions for the three and six months ended June 30, 2024 and 2023, respectively:


	Three Months Ended June 30,		Six Months Ended June 30,
	2024	2023	2024	2023
Expected term (in years)	0.49 – 0.50	0.48 – 0.50	0.49 – 0.50	0.48 – 0.50
Expected volatility	100.00% – 197.51%	66.72% – 97.38%	100.00% – 197.51%	66.72% – 97.38%
Risk-free interest rate	5.37% – 5.40%	4.62% – 5.32%	5.37% – 5.40%	4.62% – 5.32%
Dividend yield	–	–	–	–

Stock-Based Compensation

The following is a summary of stock-based compensation expense by function (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Cost of goods sold	$	94	$	71	$	200	$	130
Research and development		594		587		1,199		1,115
Selling, general and administrative		3,629		3,084		7,424		6,020
Total stock-based compensation expense	$	4,317	$	3,742	$	8,823	$	7,265

Note 9. Net Loss per Share Attributable to Common Stockholders

Basic net loss per share is computed by dividing the net loss by the weighted-average number of common shares outstanding for the period. As the Company reported a net loss for the three and six months ended June 30, 2024 and 2023, basic net loss per share is the same as diluted net loss per share for each of the reported periods.

The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the periods presented (in thousands, except share and per share data):


	Three Months Ended June 30,						Six Months Ended June 30,
	2024			2023			2024			2023
Numerator:
Net loss attributable to common stockholders	$	(12,329	)	$	(14,754	)	$	(28,595	)	$	(31,821	)
Denominator:
Weighted-average shares of common stock outstanding—basic and diluted		49,903,386			48,536,310			49,694,825			48,471,153
Net loss per share attributable to common stockholders—basic and diluted	$	(0.25	)	$	(0.30	)	$	(0.58	)	$	(0.66	)

The following potentially dilutive issued and outstanding securities were excluded from the computation of diluted net loss per share attributable to common stockholders for the period presented because including them would have been antidilutive as a result of the net loss position:


	June 30,
	2024		2023
Stock option awards		4,675,830		4,869,644
Restricted stock units		4,785,524		1,906,435
Common stock warrants		135,686		—
Total		9,597,040		6,776,079

Note 10. Segment Information

The Company has two reportable operating segments which are determined on the basis of the product portfolio: Surgical Glaucoma and Dry Eye. The operating and reportable segments were determined based on how the Company’s Chief Executive Officer, its Chief Operating Decision Maker (“CODM”), views and evaluates the Company’s operations. The CODM allocates resources to and evaluates the financial performance of each operating segment primarily based on gross profit and gross profit margin.

The Surgical Glaucoma segment includes sales of the Company’s OMNI Surgical System and SION Surgical Instrument for use in minimally invasive glaucoma procedures. The Dry Eye segment includes sales of the Company’s TearCare System and related components.

The following table summarizes select operating results information for each reportable segment (in thousands):


	Three Months Ended June 30,						Six Months Ended June 30,
	2024			2023			2024			2023
Revenue
Surgical Glaucoma	$	20,244		$	21,398		$	38,501		$	38,733
Dry Eye		1,126			2,073			2,134			3,563
Total		21,370			23,471			40,635			42,296
Cost of goods sold
Surgical Glaucoma		2,423			2,444			4,632			4,806
Dry Eye		602			937			1,187			1,623
Total		3,025			3,381			5,819			6,429
Gross profit
Surgical Glaucoma		17,821			18,954			33,869			33,927
Dry Eye		524			1,136			947			1,940
Total		18,345			20,090			34,816			35,867
Operating expenses		30,996			35,277			62,191			68,621
Loss from operations		(12,651	)		(15,187	)		(27,375	)		(32,754	)
Investment income		1,526			1,793			3,174			3,602
Interest expense		(1,145	)		(1,349	)		(2,350	)		(2,625	)
Loss on debt extinguishment		—			—			(1,962	)		—
Other expense, net		(44	)		(3	)		(50	)		(22	)
Loss before income taxes	$	(12,314	)	$	(14,746	)	$	(28,563	)	$	(31,799	)

The Company does not allocate any income and expenses beyond revenue and cost of goods sold to the reportable operating segments in its reporting to the CODM. No asset information is provided for reportable operating segments because they are not reviewed by the CODM on a segment basis. Substantially all of the Company’s revenue is generated from sales in the United States.

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our condensed consolidated financial statements and the related notes and other financial information included in Park I, Item 1, “Financial Statements,” within this Quarterly Report and our audited consolidated financial statements and related notes included in Part II, Item 8, “Financial Statements and Supplementary Data,” in our Annual Report. Certain statements included in this discussion and analysis constitute “forward-looking statements” that are subject to considerable risks and uncertainties. Please see the information under the heading “Special Note Regarding Forward-Looking Statements” in this Quarterly Report.

Overview

Sight Sciences’ mission is to develop transformative, interventional technologies that allow eyecare providers to procedurally elevate the standards of care – empowering people to keep seeing. We are passionate about improving patients’ lives by helping them preserve their sight. Our objective is to develop and market products for use in new treatment paradigms and to create an interventional mindset in eyecare whereby our products may be used in procedures which supplant conventional outdated approaches. Our business philosophy is grounded in the following principles:

•

comprehensively understanding disease physiology;

•

developing products that are intended to preserve, protect, and restore natural physiological functionality to diseased eyes;

•

developing and marketing products with proven clinical evidence that achieve superior effectiveness versus current treatment paradigms while minimizing complications or side effects;

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providing intuitive, patient-friendly, interventional solutions to ophthalmologists and optometrists (together, "ECPs"); and

•

delivering compelling economic value to all stakeholders, including patients, providers and third-party payors such as Medicare and commercial insurers.

Our initial product development has focused on the treatment of two of the world’s most prevalent and underserved eye diseases, glaucoma and dry eye disease (“DED”). We have commercialized products in each of our two reportable operating segments, Surgical Glaucoma and Dry Eye. Our Surgical Glaucoma segment consists of sales of the OMNI® Surgical System ("OMNI") and the SION® Surgical Instrument ("SION"), while our Dry Eye segment includes sales of the TearCare® System ("TearCare"), and related components and accessories. Each product is primarily sold through a highly involved direct sales model that offers intensive education, training and customer service. We believe this philosophy and model not only enable us to differentiate our products and company from competitors, but also expand our addressable market by educating ECPs, patients and other stakeholders on our products and evolving treatment paradigms. Outside of the U.S., we have established direct commercial operations in the United Kingdom and Germany. We sell OMNI in several other countries through distributors.

We sell OMNI and SION to facilities where ophthalmic surgeons perform outpatient procedures, such as ambulatory surgery centers ("ASCs") and hospital outpatient departments ("HOPDs"), which are typically reimbursed by Medicare or private payors for procedures using our products. We sell TearCare to ECPs. Currently, there is no meaningful reimbursement coverage by Medicare or private payors for MGD procedures, including TearCare, and patients typically pay out-of-pocket for TearCare, although some payors may agree to provide case-based coverage outside of a formal policy. We are continuing our controlled commercial launch and are focused on our comprehensive, clinical data-driven long-term market development plan that aims to improve awareness and patient access to TearCare. We have dedicated meaningful resources to execute our commercial strategy as we reduce operating expenses and improve cost efficiencies to better align our operating structure for long-term, profitable growth. The overall success of our approach to eyecare to date is evidenced by over 250,000 estimated uses of Surgical Glaucoma products and their predicates in over 2,000 hospitals and ASCs in the U.S. and Europe, and over 60,000 estimated uses of TearCare in over 1,500 eyecare facilities in the U.S. through June 30, 2024.

We do not currently operate any manufacturing facilities and instead contract with third parties for our production requirements. We believe our suppliers will be able to meet our current and anticipated manufacturing

needs across all our products. We plan to continue to utilize third party contract manufacturers for our products and any related components.

Revenue in our Surgical Glaucoma segment for the six-months ended June 30, 2024 and 2023 was $38.5 million and $38.7 million, respectively, with gross margins for the same periods of 88.0% and 87.6%, respectively. Revenue in our Dry Eye segment for the six-months ended June 30, 2024 and 2023 was $2.1 million and $3.6 million, respectively, with gross margins for the same periods of 44.4% and 54.4%, respectively. Given the earlier stage of TearCare’s commercial development, we expect our Dry Eye segment’s gross margins to be lower than our Surgical Glaucoma segment’s gross margins for the near- and medium-term due to the allocation of fixed labor and overhead costs to the segment's cost of goods sold. In addition, we expect lower demand and related gross margin in the Dry Eye segment in the second half of 2024 due to our increase in dry eye pricing effective October 1, 2024, which we believe will have a significant negative impact on cash-pay volumes. We expect TearCare procedure revenues will return to a growth trajectory upon receipt of positive payer coverage determinations that provide for sufficient and equitable reimbursement. We currently anticipate that we and our customers will begin receiving these coverage and payment determinations in 2025. In the first two quarters of 2024, approximately 95% of our revenue was generated from customers in the U.S.

We believe in the importance of continued strategic investment in initiatives that:

•

further demonstrate our products’ clinical effectiveness and safety to potential customers, patients, payors and regulators including establishing OMNI and SION as standards of care of interventional glaucoma treatment among MIGS-trained surgeons, developing the standalone MIGS market, and pursuing coverage and equitable reimbursement for TearCare;

•

enhance our commercial capabilities and expertise, including resources dedicated to sales, marketing and education;

•

ensure the broadest possible patient access to the treatment alternatives that our products are cleared to offer; enhance and improve upon our existing product technologies;

•

develop our existing international markets and expand into new international markets; and

•

allow us to create transformational and interventional technology innovation with new products, devices or drugs, in glaucoma and ocular surface disease or in new eye disease areas.

As a result, we intend to continue to invest in clinical studies, sales and marketing, education initiatives, market access, and product development. However, we are also focused on disciplined expenditures, and seek to grow our operating expenses at a lower rate than revenue. Because of these and other factors, we expect to continue to incur net losses for at least the next several years, and we may seek additional debt and equity financing to fund our operations and planned growth.

To date, our primary sources of capital have been private placements of redeemable convertible preferred stock, debt financing agreements, the sale of common stock in our IPO, and revenue from the sale of our products. As of June 30, 2024, we had an outstanding term loan balance of $35.0 million (excluding debt discount and amortized debt issuance costs), cash and cash equivalents of $118.2 million and an accumulated deficit of $323.4 million.

Factors Affecting Our Business and Results of Operations

We believe there are several important factors that have impacted and that will continue to impact our business, financial condition, and results of operations. Except as described in Part II, Item 1A, "Risk Factors," of this Quarterly Report, except as described below, there have been no material changes to such factors from those described in our Annual Report under the heading "Factors Affecting Our Business and Results of Operations."

The availability of sufficient coverage and reimbursement for procedures involving our OMNI technology is fundamental to our business and prospects, with Medicare providing reimbursement for procedures that account for a majority of our sales revenues. As such, our business and results of operation are in material part dependent upon Medicare reimbursement policies applicable to OMNI procedures. Recent occurrences that could reasonably be expected to materially impact Medicare reimbursement for OMNI procedures include the following:

•

In May 2024, five of the seven Medicare Administrative Contractors (“MACs”), published proposed local coverage determinations (the “Proposed LCDs”) that, if finalized, will establish new Medicare coverage policies for certain minimally invasive glaucoma surgical procedures ("MIGS procedures") performed in these MACs' jurisdictions. Unlike the LCDs previously published and later withdrawn by these MACs in 2023, the Proposed LCDs do not characterize the OMNI procedure as investigational. If the Proposed LCDs are finalized and go into effect in their current form, Medicare coverage will remain available under the LCDs for MIGS procedures involving the OMNI technology. Each of the Proposed LCDs, if finalized in their current form, would adopt a non-coverage policy when an aqueous shunt or stent procedure is performed with another surgical MIGS procedure, such as canaloplasty or goniotomy, at the same time in the same patient eye. We expect this proposed non-coverage for multiple MIGS procedures, if finalized, may reduce overall MIGS procedure volumes. Given OMNI's comprehensive treatment of the conventional outflow pathway, we believe OMNI provides an effective single MIGS procedure option for cases that were previously treated with a combination of MIGS procedures, but we cannot assure you that the Proposed LCDs, if finalized, will not have an adverse impact on future OMNI sales and therefore adversely affect our business, financial condition and results of operations.

•

In July 2024, CMS issued the calendar year (CY) 2025 Hospital Outpatient Prospective Payment System (OPPS) and ASC Payment System proposed rule (the “Proposed Rule”) setting forth proposed Medicare payment rates for hospital outpatient and ASC services in 2025. Pursuant to the Proposed Rule, Current Procedural Terminology (CPT) code 66174, which is a code used to report procedures performed with our OMNI technology, was awarded device-intensive status for procedures performed in the ASC setting. If the final rule, which we expect will be issued in the fourth quarter of 2024, confirms device-intensive status for CPT code 66174, then Medicare facility reimbursement for such procedures performed in the ASC setting will increase by approximately $600 compared to 2024 ASC facility reimbursement amounts. We believe that such an increase in reimbursement, if finalized, would materially benefit us and our customers, and allow our OMNI technology to compete more effectively in the marketplace in 2025. Device-intensive designations are granted for a period of one year only and are based on CMS’ review of applicable claims data. If CPT code 66174 does not meet the eligibility criteria for device-intensive status in CY2025 or any subsequent calendar year, then Medicare reimbursement for this service when performed in the ASC will accordingly decrease at the start of the next year after device-intensive status is removed.

Components of Our Results of Operations

Revenue

We currently derive the majority of our U.S. revenue from the sale of our OMNI and SION products to ASCs and HOPDs and our TearCare products to ECPs. To date, the revenue from our Surgical Glaucoma segment has accounted for over 90% of our total revenue, substantially all of which was generated from sales within the U.S. Our Surgical Glaucoma customers place orders based on their expected procedure volume and reorder as needed, typically on a biweekly, monthly or bimonthly basis. Our TearCare customers typically purchase a TearCare System which consists of one or more TearCare SmartHubsTM (“SmartHubs”), multiple single-use TearCare SmartLids® (“SmartLids”) and other accessories. After utilizing their initial inventory, customers can reorder SmartLids as needed. No single customer accounted for 10% or more of our revenue for the six months ended June 30, 2024 and 2023.

The growth in our revenue is driven by the demand for elective surgery and treatment utilizing our products in the United States and Europe. Such demand is often lower during summer months because of ECP vacations and in winter months because of fewer business or surgery days due to holidays and adverse weather conditions.

Cost of Goods Sold and Gross Margin

Our components and products are produced by third-party suppliers and manufacturers. Our cost of goods sold consists primarily of amounts paid for our products to third-party manufacturers, and our manufacturing overhead costs, which consist primarily of personnel expenses, including salaries, benefits and stock-based compensation, and reserves for excess, obsolete and non-sellable inventory. Cost of goods sold also includes depreciation expenses for production equipment which we provide to our third-party manufacturers and certain direct costs, such as shipping and handling costs.

We calculate gross margin as gross profit divided by revenue. Our gross margin has been and we believe it will continue to be, affected by a variety of factors, including differences in segment gross margins, changes in average selling prices, product sales mix, production and ordering volumes, manufacturing costs, product yields, and headcount. In general, we expect our gross margins to increase over the long term to the extent our production and ordering volumes increase and as we spread the fixed portion of our overhead costs over a larger number of units produced. We intend to use our design, engineering and manufacturing know-how and capabilities to further advance and improve the efficiency of our suppliers’ manufacturing processes, which we believe will reduce costs and increase our gross margins. Our gross margins could fluctuate from quarter to quarter as our product mix varies, we transition to new suppliers, introduce new products, and adopt new manufacturing processes and technologies.

Research and Development Expenses

Research and development ("R&D") expenses consist primarily of costs associated with engineering, product development, clinical studies to develop and support our products, including clinical trial design, clinical trial site initiation and study costs, internal and external costs associated with our regulatory compliance and quality assurance functions, medical affairs, cost of products used for clinical trials and other costs associated with products and technologies – either new or enhancements of existing platforms – that are in development. These expenses also include personnel expenses, including salaries, benefits and stock-based compensation, supplies, consulting, prototyping, testing, materials, travel expenses, depreciation expenses for equipment and an allocation of information technology ("IT") and facility overhead expenses. Our R&D expenses as a percentage of revenue may vary over time depending on the level and timing of new product development efforts, as well as clinical development, clinical trial and other related activities. We expect our R&D expenses to increase for the next several years as we continue to invest in our active clinical trial programs, develop new products, and improve our existing products.

Selling, General and Administrative Expenses

Selling, general and administrative ("SG&A") expenses consist primarily of personnel expenses, including salaries, benefits and stock-based compensation related to selling, marketing and corporate functions, allocation of IT and facility overhead expenses, bad debt expense, finance, legal and human resource costs. Other SG&A expenses include training, travel expenses, promotional activities, marketing initiatives, market research and analysis, conferences and trade shows, professional services fees (including external legal, audit, consulting and tax fees), insurance costs, and general corporate expenses.

Investment Income

Investment income primarily consists of interest and amortization on held-to-maturity investments in treasury securities.

Interest Expense

Interest expense consists primarily of interest incurred on our outstanding indebtedness and non-cash interest related to the accretion of debt discount and amortization of debt issuance costs associated with our term loan agreement.

Loss on Debt Extinguishment

The loss on debt extinguishment is associated with the Company's termination and settlement of the MidCap Term Loan.

Other Expense, Net

Other expense, net primarily consists of income and expenses that do not originate from the Company's primary business.

Results of Operations

Comparison of the Three Months Ended June 30, 2024 and 2023 (dollars in thousands)


	Three Months Ended June 30,						Change
	2024			2023			$			%
	(unaudited)
Revenue
Surgical Glaucoma	$	20,244		$	21,398		$	(1,154	)		(5.4	)%
Percentage of total revenue		94.7	%		91.2	%
Dry Eye		1,126			2,073			(947	)		(45.7	)
Percentage of total revenue		5.3	%		8.8	%
Total		21,370			23,471			(2,101	)		(9.0	)
Cost of goods sold
Surgical Glaucoma		2,423			2,444			(21	)		(0.9	)
Dry Eye		602			937			(335	)		(35.8	)
Total		3,025			3,381			(356	)		(10.5	)
Gross profit
Surgical Glaucoma		17,821			18,954			(1,133	)		(6.0	)
Dry Eye		524			1,136			(612	)		(53.9	)
Total		18,345			20,090			(1,745	)		(8.7	)
Gross margin
Surgical Glaucoma		88.0	%		88.6	%
Dry Eye		46.5	%		54.8	%
Total		85.8	%		85.6	%
Operating expenses
Research and development		4,316			5,221			(905	)		(17.3	)
Selling, general and administrative		26,680			30,056			(3,376	)		(11.2	)
Total operating expenses		30,996			35,277			(4,281	)		(12.1	)
Loss from operations		(12,651	)		(15,187	)		2,536			16.7
Investment income		1,526			1,793			(267	)		14.9
Interest expense		(1,145	)		(1,349	)		204			15.1
Loss on debt extinguishment		—			—			—		n.m.
Other expense, net		(44	)		(3	)		(41	)		(1,366.7	)

Loss before income taxes		(12,314	)		(14,746	)		2,432			16.5
Provision for income taxes		15			8			7			87.5
Net loss and comprehensive loss	$	(12,329	)	$	(14,754	)	$	2,425			16.4	%

Revenue. Our Surgical Glaucoma revenue for the three months ended June 30, 2024 was $20.2 million, a decrease of $1.2 million, or 5.4%, from the prior year comparable period. The overall decrease in Surgical Glaucoma revenue was primarily attributable to a decrease in the number of OMNI units sold and a lower average selling price primarily due to product mix in the three months ended June 30, 2024. This decline in units sold was primarily driven by a decrease in unit utilization per ordering facility. Our Dry Eye revenue decreased 45.7% in the three months ended June 30, 2024 compared to the prior year comparable period primarily due to fewer new customers added in the period, which led to lower SmartHub revenue and fewer SmartLids purchased. The primary driver of fewer new customers added and lower units sold was due to the Company’s focus on the next phase of its commercial strategy for its Dry Eye segment which involves achieving market access.

Cost of Goods Sold. Cost of goods sold was $3.0 million during the three months ended June 30, 2024, a decrease of $0.4 million from $3.4 million in the prior year comparable period. Our Surgical Glaucoma cost of goods sold decreased less than $0.1 million as compared to the prior year comparable period. The decrease was primarily driven by lower sales volumes and product sales mix. Our Dry Eye cost of goods sold decreased $0.3 million in the three months ended June 30, 2024 compared to the comparable period in 2023, primarily driven by lower sales volumes and product mix.

Gross Profit. Our total gross profit was $18.3 million in the three months ended June 30, 2024, a decrease of $1.7 million from the prior year comparable period. Our total gross margin for the three months ended June 30, 2024 increased to 85.8%, up from 85.6% in the prior year comparable period, primarily due to increased mix toward our higher gross margin Surgical Glaucoma segment, partially offset by declines in gross margin of both segments. Gross margin in our Surgical Glaucoma segment was 88.0% for the quarter ended June 30, 2024, a decrease from 88.6% for the prior year comparable period, primarily due to product sales mix. In our Dry Eye segment, gross margin decreased from 54.8% in the second quarter of 2023 to 46.5% in the second quarter of 2024, primarily due to product sales mix and higher overhead costs per unit due to lower volumes.

Research and Development Expenses. R&D expenses during the three months ended June 30, 2024 decreased $0.9 million, or 17.3%, to $4.3 million. The decrease was primarily driven by a $0.7 million decrease in clinical studies and general research and development expenses, as well as a $0.4 million decrease in payroll expenses.

Selling, General, and Administrative Expenses. SG&A expenses were $26.7 million for the three months ended June 30, 2024, a decrease of $3.4 million from the prior year comparable period. The decrease was primarily driven by a $2.9 million decrease in personnel expenses, including lower commissions during the current period. In addition, the Company saw a $0.7 million decrease in marketing expenses, a $0.7 million decrease in travel and entertainment expenses, and a $0.3 million decrease in facilities expenses. These decreases were partially offset by a $0.8 million increase in accounting and legal expenses, as well as a $0.5 million increase in stock-based compensation expenses.

Investment Income. Investment income was $1.5 million for the three months ended June 30, 2024, a decline of $0.3 million from the prior year comparable period. The decline was due to lower investment balances during the current year.

Interest Expense. Interest expense decreased $0.2 million, due to lower lending rates associated with the refinanced debt agreement during the three months ended June 30, 2024 compared to the three months ended June 30, 2023.

Loss on Debt Extinguishment. Loss on debt extinguishment was $0.0 million for both the three months ended June 30, 2024 and 2023.

Other Expense, Net. Other expense, net was expense of less than $0.1 million for both the three months ended June 30, 2024 and 2023.

Comparison of the Six Months Ended June 30, 2024 and 2023 (dollars in thousands)


	Six Months Ended June 30,						Change
	2024			2023			$			%
	(unaudited)
Revenue
Surgical Glaucoma	$	38,501		$	38,733		$	(232	)		(0.6	)%
Percentage of total revenue		94.7	%		91.6	%
Dry Eye		2,134			3,563			(1,429	)		(40.1	)
Percentage of total revenue		5.3	%		8.4	%
Total		40,635			42,296			(1,661	)		(3.9	)
Cost of goods sold
Surgical Glaucoma		4,632			4,806			(174	)		(3.6	)
Dry Eye		1,187			1,623			(436	)		(26.9	)
Total		5,819			6,429			(610	)		(9.5	)
Gross profit
Surgical Glaucoma		33,869			33,927			(58	)		(0.2	)
Dry Eye		947			1,940			(993	)		(51.2	)
Total		34,816			35,867			(1,051	)		(2.9	)
Gross margin
Surgical Glaucoma		88.0	%		87.6	%
Dry Eye		44.4	%		54.4	%
Total		85.7	%		84.8	%
Operating expenses
Research and development		8,952			9,890			(938	)		(9.5	)
Selling, general and administrative		53,239			58,731			(5,492	)		(9.4	)
Total operating expenses		62,191			68,621			(6,430	)		(9.4	)
Loss from operations		(27,375	)		(32,754	)		5,379			16.4
Investment income		3,174			3,602			(428	)		(11.9	)
Interest expense		(2,350	)		(2,625	)		275			(10.5	)
Loss on debt extinguishment		(1,962	)		—			(1,962	)	n.m.
Other expense, net		(50	)		(22	)		(28	)		127.3

Loss before income taxes		(28,563	)		(31,799	)		3,236			(10.2	)
Provision for income taxes	$	32		$	22			10			45.5
Net loss and comprehensive loss		(28,595	)		(31,821	)	$	3,226			(10.1	)%

Revenue. Revenue for the six months ended June 30, 2024 was $40.6 million, a decrease of $1.7 million, or 3.9%, from the prior year comparable period. The overall decrease in Surgical Glaucoma revenue was primarily attributable to a decrease in the number of OMNI units sold in the six months ended June 30, 2024. This decline in units sold was primarily driven by a decrease in unit utilization per ordering facility and a lower average selling price primarily due to product mix. Our Dry Eye revenue decreased 40.1% in the six months ended June 30, 2024 versus the prior year comparable period primarily due to fewer new customers added in the period, which led to lower SmartHub revenue and fewer SmartLids purchased, partially offset by a higher average selling price for SmartHubs.

Cost of Goods Sold. Cost of goods sold was $5.8 million during the six months ended June 30, 2024, a decrease of $0.6 million from $6.4 million in the prior year comparable period. Our Surgical Glaucoma cost of goods sold decreased $0.2 million as compared to the prior year comparable period. The decrease was primarily driven by product sales mix and a one-time prior year inventory scrap expense. Our Dry Eye cost of goods sold decreased $0.4 million in the six months ended June 30, 2024 compared to the prior year comparable period, primarily driven by lower sales volumes and product mix.

Gross Profit. Our total gross profit was $34.8 million in the six months ended June 30, 2024, a decrease of $1.1 million from the prior year comparable period. Our total gross margin for the six months ended June 30, 2024

increased to 85.7%, up from 84.8% in the prior year comparable period. Gross margin in our Surgical Glaucoma segment was 88.0% for the six months ended June 30, 2024, an increase from 87.6% for the prior year comparable period, primarily due to a one-time prior year inventory scrap expense. In our Dry Eye segment, gross margin decreased from 54.4% in the six months ended June 30, 2023 to 44.4% in the six months ended June 30, 2024, primarily due to product sales mix and higher overhead costs per unit due to lower volumes.

Research and Development Expenses. R&D expenses during the six months ended June 30, 2024 decreased $0.9 million, or 9.5%, to $9.0 million. The decrease was primarily driven by a $0.7 million decrease in clinical studies and general research and development expenses, as well as $0.6 million decrease in payroll expenses. These were partially offset by a $0.3 million increase in legal and stock-based compensation expenses.

Selling, General, and Administrative Expenses. SG&A expenses were $53.2 million for the six months ended June 30, 2024, a decrease of $5.5 million from the prior year comparable period. The decrease was primarily driven by a $5.9 million decrease in personnel expenses, including lower commissions during the current period. In addition, the Company saw a $2.2 million decrease in marketing expenses, including sales training and demos, a $1.1 million decrease in travel and entertainment expenses, and a $0.6 million decrease in facilities expenses. These decreases were partially offset by a $3.4 million increase in accounting and legal expenses, as well as a $1.4 million increase in stock-based compensation expenses.

Investment Income. Investment income was $3.2 million for the six months ended June 30, 2024, a decline of $0.4 million from the prior year comparable period. The decline was due to lower investment balances during the current year.

Interest Expense. Interest expense decreased $0.3 million, due to lower lending rates associated with the refinanced debt agreement during the six months ended June 30, 2024 compared to the six months ended June 30, 2023.

Loss on Debt Extinguishment. Loss on debt extinguishment was $2.0 million for the six months ended June 30, 2024 as compared to $0.0 million in the six months ended June 30, 2023. The increase in the current year is driven by the Company's loss on the termination and settlement of the MidCap Term Loan.

Other Expense, Net. Other expense, net was expense of $0.1 million and $0.0 million for the six months ended June 30, 2024 and 2023.

Cash Flows

The following table summarizes our cash flows for the periods indicated (in thousands):


	Six Months Ended June 30,
	2024			2023

Net cash used in operating activities	$	(19,254	)	$	(30,872	)
Net cash used in investing activities	$	(197	)	$	(223	)
Net cash (used in) provided by financing activities	$	(501	)	$	610
Net change in cash and cash equivalents	$	(19,952	)	$	(30,485	)

Net Cash Used in Operating Activities.

Net cash used in operating activities for the six months ended June 30, 2024 was $19.3 million, consisting primarily of a net loss of $28.6 million, as well as a net change in our operating assets and liabilities of $1.4 million, partially offset by non-cash charges of $10.7 million. The net change in our operating assets and liabilities was primarily due to a $5.7 million increase in accounts receivable and a $1.3 million decrease in other noncurrent liabilities. Accrued and other current liabilities increased $1.9 million, while both inventory and prepaid expenses and other current assets increased by $1.2 million. In addition, accrued compensation increased by $0.9 million and accounts payable increased by $0.6 million. The non-cash charges primarily consisted of $8.8 million related to

stock-based compensation expense, $1.0 million of noncash loss on the extinguishment of debt, $0.4 million of depreciation and amortization and $0.3 million of noncash operating lease expense.

Net cash used in operating activities for the six months ended June 30, 2023 was $30.9 million, consisting primarily of a net loss of $31.8 million and a net change in our operating assets and liabilities of $7.7 million, partially offset by non-cash charges of $8.7 million. The net change in our operating assets and liabilities was primarily due to a $3.0 million increase in accounts receivable and a $2.0 million increase in inventory to support the continued growth of our operations. We had a $0.2 million increase in accounts payable, while accrued compensation and accrued and other current liabilities decreased by an aggregate of $4.5 million, primarily driven by the timing of payments on invoices and bonuses. The non-cash charges primarily consisted of $7.3 million related to stock-based compensation, $0.5 million of noncash operating lease expense, $0.3 million of depreciation, and $0.3 million of accretion of debt discount and amortization of debt issuance costs.

Net Cash Used in Investing Activities.

Net cash used in investing activities for the six months ended June 30, 2024 and 2023 was $0.2 million and $0.2 million, respectively, in both cases for purchases of property and equipment.

Net Cash (Used in) Provided by Financing Activities.

Net cash used in financing activities for the six months ended June 30, 2024 was $0.5 million, consisting primarily of the costs associated with the refinancing of the outstanding term loan agreement. Net cash provided by financing activities for the six months ended June 30, 2023 of $0.6 million, which primarily relates to the exercise of common stock options and proceeds from employee stock plan purchases, partially offset by taxes paid on the net share settlement of restricted stock units.

Liquidity and Capital Resources

Sources of Liquidity

To date, our primary sources of capital have been private placements of redeemable convertible preferred stock, debt financing agreements, the sale of common stock in our IPO, and revenue from the sale of our products. Since our inception, we have raised an aggregate of approximately $402.4 million in net proceeds from sales of our redeemable convertible preferred stock and common stock and borrowed $32.9 million of net proceeds under our term loans. In January 2024, we entered into a Loan and Security Agreement (the “Hercules Loan Agreement”) with Hercules Capital, Inc (“Hercules”) and certain of its affiliates (collectively with Hercules, the “Lenders”), which provides for a senior secured term loan facility in the aggregate principal amount of up to $65.0 million. We used the proceeds from an initial $35.0 million tranche funded under the Hercules Loan Agreement to discharge our indebtedness under our prior secured credit facility with MidCap Financial Services and certain of its affiliates (the “Prior Lenders”). While our indebtedness to Lenders remains outstanding, we are required to use commercially reasonable efforts to grant to Lenders the option to invest up to $3.0 million in our next round of equity financing, if any, broadly marketed to multiple investors on the same terms, conditions and pricing offered to investors in such subsequent equity financing.

As of June 30, 2024, we had cash and cash equivalents of $118.2 million, an accumulated deficit of $323.4 million and $35.0 million outstanding under our term loan agreement (before debt discount) with Hercules. Based on our current planned operations, we expect our cash and cash equivalents and additional borrowings available under the Hercules Loan Agreement will enable us to fund our operations for at least the next 12 months and the foreseeable future.

Hercules Capital Loan Agreement

The Hercules Loan Agreement provides for a senior secured term loan facility in the aggregate principal amount of up to $65.0 million. An initial tranche of $35.0 million (the “Initial Loan”) was funded under the Hercules Loan Agreement on January 22, 2024 (the “Closing Date”). In addition to the Initial Loan, the Hercules Loan Agreement provides for additional tranches as follows: $5.0 million available in a single draw through December 15, 2024, $10.0 million available to draw upon the achievement of certain performance milestones through September 15, 2025, and $15.0 million available for us to draw on through the interest only period in

increments of $5.0 million, subject to the sole approval of Hercules' investment committee (the “Tranche Loans,” and together with the Initial Loan, the “Term Loans”).

The Hercules Loan Agreement includes a maturity date of July 1, 2028, with an interest only period running for 30 months, extendable for an additional 6 months for a total of 36 months upon the achievement of certain milestones. The Term Loans accurate interest at a floating annual rate of the greater of 10.35% or the Wall Street Journal prime rate plus 2.35%, with the initial interest rate under the Term Loans equal to 10.85%. The final payment fee is set at 5.95% of the funded balance. In conjunction with the funding of the Initial Loan, we issued warrants to the Lenders to purchase up to an aggregate of 135,686 shares of our common stock at an exercise price of $5.159 per share. Each warrant is exercisable for a period of seven years from the date of issuance and is tradeable in accordance with the provisions of Rule 144 of the Securities Act.

Our obligations under the Hercules Loan Agreement are guaranteed by us and our future subsidiaries, subject to exceptions for certain foreign subsidiaries. Our obligations under the agreement are secured by substantially all of our assets, including our material intellectual property. Additionally, we are subject to customary affirmative and negative covenants, including covenants that limit or restrict the ability of us to, among other things, incur indebtedness, grant liens, merge or consolidate, make investments, dispose of assets, make acquisitions, pay dividends or make distributions, repurchase stock and enter into certain transactions with affiliates, in each case subject to certain exceptions. We are also subject to certain minimum cash and revenue covenants under the Hercules Loan Agreement.

MidCap Loan Agreements

In January 2019, we entered into credit and security agreements with the Prior Lenders. These agreements were amended and restated in November 2020, providing for a maximum $40.0 million credit facility consisting of a $35.0 million senior secured term loan (the "2020 Term Loan") and a $5.0 million revolving loan (the "2020 Revolver” and together with the 2020 Term Loan, the “MidCap Credit Facility”). In July 2023, we terminated the 2020 Revolver. In January 2024, we terminated the Amended and Restated Credit and Security Agreement (Term Loan) “(the “MidCap Term Loan Agreement”) and paid off in full the secured obligations thereunder in connection with our entry into the Hercules Loan Agreement.

The MidCap Term Loan Agreement extended the maturity date of the 2020 Term Loan to November 1, 2025 and adjusted the stated floating interest rate to reserve-adjusted SOFR, plus 7.00%. Principal payments under the MidCap Term Loan Agreement were extended and scheduled to begin in December 2024. The final payment fee was amended to 6.0%.

Our obligations under the MidCap Term Loan Agreement were guaranteed by us and our future subsidiaries, subject to exceptions for certain foreign subsidiaries. Our obligations under the agreements were secured by substantially all of our assets, including our material intellectual property. Additionally, we were subject to customary affirmative and negative covenants, including covenants that limited or restricted our ability to, among other things, incur indebtedness, grant liens, merge or consolidate, make investments, dispose of assets, make acquisitions, pay dividends or make distributions, repurchase stock and enter into certain transactions with affiliates, in each case subject to certain exceptions.

The MidCap Credit Term Loan Agreement contained events of default that included, among others, non-payment of principal, interest or fees, breach of covenants, inaccuracy of representations and warranties, cross-defaults and bankruptcy and insolvency events.

Leases

Our corporate headquarters are located in Menlo Park, California, where we lease approximately 11,000 square feet of office, research and development, engineering and laboratory space pursuant to a lease that commenced on August 1, 2021, and expires on October 31, 2026.

Off-Balance Sheet Arrangements

We do not have any off-balance sheet arrangements.

Critical Accounting Estimates

Our unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report have been prepared in accordance with U.S. generally accepted accounting principles. The preparation of these condensed consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, expenses and related disclosures. Our estimates are based on our historical experience and various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions and any such differences may be material.

An accounting estimate is deemed to be critical if it requires an accounting estimate to be made based on assumptions about matters that are highly uncertain at the time the estimate is made, if different estimates reasonably could have been used, or if changes in the estimate that are reasonably possible could materially impact the financial statements. We believe that the assumptions and estimates associated with stock-based compensation expense have the greatest potential impact on our condensed consolidated financial statements. Therefore, we consider this to be a critical accounting estimate.

There have been no material changes to our critical accounting estimates as compared to the critical accounting estimates described in our audited consolidated financial statements for the year ended December 31, 2023, included under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Estimates” in our Annual Report.

JOBS Act Accounting Election

The JOBS Act permits an “emerging growth company” such as us to take advantage of an extended transition period to comply with new or revised accounting standards applicable to public companies. We have elected to use this extended transition period under the JOBS Act. As a result, our financial statements may not be comparable to the financial statements of issuers who are required to comply with the effective dates for new or revised accounting standards that are applicable to public companies, which may make comparison of our financial statements to those of other public companies more difficult.

Recently Issued Accounting Pronouncements

See Note 2, Summary of Significant Accounting Policies, in the notes to our unaudited condensed consolidated financial statements in this Quarterly Report for recent accounting pronouncements not yet adopted as of the date hereof.

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

We are exposed to market risks in the ordinary course of our business. These risks primarily include interest rate risk. There have been no material changes to such risks from those described in our Annual Report under the heading "Quantitative and Qualitative Disclosures About Market Risk."

Item 4. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

Our management, with the participation and supervision of our principal executive officer and our principal financial and accounting officer, evaluated our disclosure controls and procedures. The term "disclosure controls and procedures," (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC's rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the Company's management,

including its principal executive officer, and principal financial and accounting officer, as appropriate to allow timely decisions regarding required disclosure.

Based on this evaluation, our principal executive officer and principal financial and accounting officer concluded that, as of the end of the period covered by this Quarterly Report, our disclosure controls and procedures were effective at a reasonable assurance level.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the quarter ended June 30, 2024 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II—OTHER INFORMATION

Item 1. Legal Proceedings.

Except as set forth in Note 6, Commitments and Contingencies, in the notes to the unaudited condensed consolidated financial statements in this Quarterly Report, we do not believe we are currently a party to any legal proceedings, regulatory matters, or other disputes or claims which, if determined adversely to us, would, individually or taken together, have a material adverse effect on our business, financial condition, operating results, liquidity or future prospects. However, we may, in the ordinary course of business, face various claims brought by third parties, and we may, from time to time, make claims or take legal actions to assert our rights, including intellectual property rights as well as claims relating to employment matters and the safety or effectiveness of our products. Any of these claims could subject us to costly litigation, and, while we generally believe that we have adequate insurance to cover many different types of liabilities, our insurance carriers may deny coverage, may be inadequately capitalized to pay on valid claims, or our policy limits may be inadequate to fully satisfy any damage awards or settlements. If this were to happen, the payment of any such awards could have a material adverse effect on our business, financial condition and results of operations. Additionally, any such claims, whether or not successful, could damage our reputation and business, and may have an adverse impact on us as a result of defense and settlement costs, diversion of management time and resources, and other factors.

Item 1A. Risk Factors.

We are not aware of any material changes to the risks and uncertainties described under the heading "Risk Factors" in our Annual Report or Quarterly Report on Form 10-Q for the three months ended March 31, 2024, which are incorporated herein by reference. The risks described in our Annual Report and our Quarterly Report on Form 10-Q for the three months ended March 31, 2024 are not the only ones we face. Additional risks we currently do not know about or that we currently believe to be immaterial may also impair our business, financial condition, operating results, liquidity, and future prospects.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

Use of Proceeds

On July 14, 2021, our registration statement on Form S-1 (File No. 333-257320) relating to our initial public offering ("IPO") of common stock became effective. The IPO closed on July 15, 2021, at which time we issued 11,500,000 shares of our common stock at a price of $24.00 per share.

There has been no material change in the planned use of proceeds from our IPO as described in our final prospectus dated July 14, 2021 and filed with the SEC on July 15, 2021 pursuant to Rule 424(b) under the Securities Act.

Recent Sales of Unregistered Securities

There were no sales of unregistered equity securities during the quarter ended June 30, 2024 that were not previously reported in a Current Report on Form 8-K.

Issuer Repurchases of Equity Securities

None.

Item 3. Defaults Upon Senior Securities.

None.

Item 4. Mine Safety Disclosures.

Not applicable.

Item 5. Other Information.

Trading Plans

During the quarter ended June 30, 2024, no director or Section 16 officer adopted, modified, or terminated any Rule 10b5-1 trading arrangements or non-Rule 10b5-1 trading arrangements.

Item 6. Exhibits.

The following exhibits are filed or furnished as a part of, or incorporated by reference into, this Quarterly Report.

     
    Incorporated by Reference

    Exhibit Number

    Exhibit Description

    Form

    File No.

    Exhibit

    Filing Date

    Filed/Furnished Herewith

    3.1

    Restated Certificate of Incorporation of Sight Sciences, Inc.

    8-K

    001-40587

    3.1

    7/19/21

    3.2

    Amended and Restated Bylaws of Sight Sciences, Inc.

    8-K

    001-40587

    3.2

    7/19/21

    31.1

    Certification of the Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

    *

    31.2

    Certification of the Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

    *

    32.1

    Certification of the Chief Executive Officer pursuant to 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

    **

    32.2

    Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

    **

    101.INS

    Inline XBRL Instance Document

    *

    101.SCH

    Inline XBRL Taxonomy Extension Schema Document

    *

    101.CAL

    Inline XBRL Taxonomy Extension Calculation Linkbase Document

    *

    101.DEF

    Inline XBRL Taxonomy Extension Definition Linkbase Document

    *

    101.LAB

    Inline XBRL Taxonomy Extension Label Linkbase Document

    *

    101.PRE

    Inline XBRL Taxonomy Extension Presentation Linkbase Document

    *

    104

    Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

    *

* Filed herewith.

** Furnished herewith.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized.


	SIGHT SCIENCES, INC

Date: August 2, 2024	By:	/s/ Alison Bauerlein
		Alison Bauerlein
		Chief Financial Officer (Principal Financial Officer and
		Principal Accounting Officer)

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Paul Badawi, certify that:

I have reviewed this Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2024 of Sight Sciences, Inc.;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.



Date: August 2, 2024	/s/ Paul Badawi
	Paul Badawi Chief Executive Officer (Principal Executive Officer)

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Alison Bauerlein, certify that:

I have reviewed this Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2024 of Sight Sciences, Inc.;

any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.


Date: August 2, 2024
	/s/ Alison Bauerlein
	Alison Bauerlein Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Sight Sciences, Inc. (the “Company”) hereby certifies that, to his knowledge:

the Quarterly Report on Form 10-Q of the Company for the quarterly period ended June 30, 2024 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.


Dated: August 2, 2024	/s/ Paul Badawi
	Paul Badawi
	Chief Executive Officer (Principal Executive Officer)

The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. § 1350, and is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.


Dated: August 2, 2024	/s/ Alison Bauerlein
	Alison Bauerlein
	Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2024	Jul. 26, 2024
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Jun. 30, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Registrant Name	SIGHT SCIENCES, INC.
Entity Central Index Key	0001531177
Securities Act File Number	001-40587
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	80-0625749
Entity Address, Address Line One	4040 Campbell Ave
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	Menlo Park
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94025
City Area Code	877
Local Phone Number	266-1144
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	SGHT
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Security Exchange Name	NASDAQ
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Small Business	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		50,307,299

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 118,177	$ 138,129
Accounts receivable, net of allowance for credit losses of $1,059 and $1,186 at June 30, 2024 and December 31, 2023, respectively	19,919	14,289
Inventory, net	6,781	7,849
Prepaid expenses and other current assets	1,452	2,604
Total current assets	146,329	162,871
Property and equipment, net	1,489	1,640
Operating lease right-of-use assets	1,257	1,458
Other noncurrent assets	640	682
Total assets	149,715	166,651
Current liabilities:
Accounts payable	1,923	1,731
Accrued compensation	5,394	4,528
Accrued and other current liabilities	5,971	3,774
Current portion - long-term debt, net	0	2,219
Total current liabilities	13,288	12,252
Long-term debt, net	33,770	31,708
Other noncurrent liabilities	1,019	2,476
Total liabilities	48,077	46,436
Commitments and contingencies (Note 6)
Stockholders' equity:
Preferred stock, par value $0.001 per share; 10,000,000 shares authorized; no shares issued and outstanding as of June 30, 2024 and December 31, 2023	0	0
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 50,136,131 and 49,131,363 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	50	49
Additional paid-in-capital	424,973	414,956
Accumulated deficit	(323,385)	(294,790)
Total stockholders' equity	101,638	120,215
Total liabilities and stockholders' equity	$ 149,715	$ 166,651

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Accounts receivable, net of allowance for credit losses	$ 1,059	$ 1,186
Preferred stock par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	50,136,131	49,131,363
Common stock, shares outstanding	50,136,131	49,131,363

Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Revenue	$ 21,370	$ 23,471	$ 40,635	$ 42,296
Cost of goods sold	3,025	3,381	5,819	6,429
Gross profit	18,345	20,090	34,816	35,867
Operating expenses:
Research and development	4,316	5,221	8,952	9,890
Selling, general and administrative	26,680	30,056	53,239	58,731
Total operating expenses	30,996	35,277	62,191	68,621
Loss from operations	(12,651)	(15,187)	(27,375)	(32,754)
Investment income	1,526	1,793	3,174	3,602
Interest expense	(1,145)	(1,349)	(2,350)	(2,625)
Loss on debt extinguishment	0	0	(1,962)	0
Other expense, net	(44)	(3)	(50)	(22)
Loss before income taxes	(12,314)	(14,746)	(28,563)	(31,799)
Provision for income taxes	15	8	32	22
Net loss and comprehensive loss	$ (12,329)	$ (14,754)	$ (28,595)	$ (31,821)
Net loss per share attributable to common stockholders-basic	$ (0.25)	$ (0.3)	$ (0.58)	$ (0.66)
Net loss per share attributable to common stockholders-diluted	$ (0.25)	$ (0.3)	$ (0.58)	$ (0.66)
Weighted-average shares used in computing net loss per share attributable to common stockholders-basic	49,903,386	48,536,310	49,694,825	48,471,153
Weighted-average shares used in computing net loss per share attributable to common stockholders-diluted	49,903,386	48,536,310	49,694,825	48,471,153

Condensed Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Beginning Balance at Dec. 31, 2022	$ 160,076	$ 48	$ 399,271	$ (239,243)
Beginning Balance, shares at Dec. 31, 2022		48,298,138
Issuance of common stock upon exercise of stock options		103,202
Issuance of common stock upon exercise of stock options	171		171
Issuance of common stock upon vesting of restricted stock units	1	$ 1
Issuance of common stock upon vesting of restricted stock units, shares		169,469
Withholding taxes on net share settlement of restricted stock units	(222)		(222)
ESPP purchase	661		661
ESPP purchase, Shares		78,534
Stock-based compensation expense	7,265		7,265
Net Income (Loss)	(31,821)			(31,821)
Ending Balance at Jun. 30, 2023	136,131	$ 49	407,146	(271,064)
Ending Balance, shares at Jun. 30, 2023		48,649,343
Beginning Balance at Mar. 31, 2023	146,376	$ 48	402,638	(256,310)
Beginning Balance, shares at Mar. 31, 2023		48,450,378
Issuance of common stock upon exercise of stock options		56,994
Issuance of common stock upon exercise of stock options	122		122
Issuance of common stock upon vesting of restricted stock units	1	$ 1
Issuance of common stock upon vesting of restricted stock units, shares		63,437
Withholding taxes on net share settlement of restricted stock units	(17)		(17)
ESPP purchase	661		661
ESPP purchase, Shares		78,534
Stock-based compensation expense	3,742		3,742
Net Income (Loss)	(14,754)			(14,754)
Ending Balance at Jun. 30, 2023	136,131	$ 49	407,146	(271,064)
Ending Balance, shares at Jun. 30, 2023		48,649,343
Beginning Balance at Dec. 31, 2023	120,215	$ 49	414,956	(294,790)
Beginning Balance, shares at Dec. 31, 2023		49,131,363
Issuance of common stock upon exercise of stock options		155,183
Issuance of common stock upon exercise of stock options	156		156
Issuance of common stock upon vesting of restricted stock units		$ 1	(1)
Issuance of common stock upon vesting of restricted stock units, shares		617,295
Warrant issuance	609		609
Withholding taxes on net share settlement of restricted stock units	(20)		(20)
ESPP purchase	450		450
ESPP purchase, Shares		232,290
Stock-based compensation expense	8,823		8,823
Net Income (Loss)	(28,595)			(28,595)
Ending Balance at Jun. 30, 2024	101,638	$ 50	424,973	(323,385)
Ending Balance, shares at Jun. 30, 2024		50,136,131
Beginning Balance at Mar. 31, 2024	109,209	$ 50	420,215	(311,056)
Beginning Balance, shares at Mar. 31, 2024		49,565,200
Issuance of common stock upon exercise of stock options		22,225
Issuance of common stock upon exercise of stock options	11		11
Issuance of common stock upon vesting of restricted stock units, shares		316,416
Withholding taxes on net share settlement of restricted stock units	(20)		(20)
ESPP purchase	450		450
ESPP purchase, Shares		232,290
Stock-based compensation expense	4,317		4,317
Net Income (Loss)	(12,329)			(12,329)
Ending Balance at Jun. 30, 2024	$ 101,638	$ 50	$ 424,973	$ (323,385)
Ending Balance, shares at Jun. 30, 2024		50,136,131

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities
Net loss	$ (28,595)	$ (31,821)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	378	295
Accretion of debt discount and amortization of debt issuance costs	168	294
Stock-based compensation expense	8,823	7,265
Provision for credit losses	104	40
Provision for excess and obsolete inventories	(91)	208
Noncash operating lease expense	325	489
Loss on disposal of property and equipment	0	66
Noncash loss on extinguishment of debt	1,033	0
Changes in operating assets and liabilities:
Accounts receivable	(5,734)	(2,995)
Inventory	1,159	(2,001)
Prepaid expenses and other current assets	1,151	1,622
Other noncurrent assets	(49)	(156)
Accounts payable	627	190
Accrued compensation	866	(1,632)
Accrued and other current liabilities	1,909	(2,894)
Other noncurrent liabilities	(1,328)	158
Net cash used in operating activities	(19,254)	(30,872)
Cash flows from investing activities
Purchases of property and equipment	(197)	(223)
Net cash used in investing activities	(197)	(223)
Cash flows from financing activities
Net proceeds from Hercules Loan Agreement	34,526	0
Repayment of MidCap Loan Agreement	(35,375)	0
Debt issuance costs	(238)	0
Proceeds from employee stock purchase plan purchases	450	661
Taxes paid on net share settlement of restricted stock units	(20)	(222)
Proceeds from exercise of common stock options	156	171
Net cash (used in) provided by financing activities	(501)	610
Net change in cash and cash equivalents	(19,952)	(30,485)
Cash and cash equivalents at beginning of period	138,129	185,000
Cash and cash equivalents at end of period	118,177	154,515
Supplemental disclosure of cash flow information
Cash paid for interest	2,024	2,066
Supplemental noncash disclosure of investing and financing activities
Acquisition of property and equipment included in accounts payable and accrued liabilities	0	147
Common stock warrants issued upon execution of Hercules Loan Agreement	$ 609	$ 0

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ (12,329)	$ (14,754)	$ (28,595)	$ (31,821)

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Jun. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Rule 10b5-1 Arrangement Modified	false
Non-Rule 10b5-1 Arrangement Modified	false

Company and Nature of Business

6 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Company and Nature of Business

Note 1. Company and Nature of Business

Description of Business

Significant Risks and Uncertainties

Summary of Significant Accounting Policies	6 Months Ended
Summary of Significant Accounting Policies	Jun. 30, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2. Summary of Significant Accounting Policies Basis of Presentation The condensed consolidated financial statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States of America ("US GAAP") applicable to interim periods and pursuant to the instructions to Form 10-Q and Article 10 of Regulation S-X. The Company’s condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, Sight Sciences UK, Ltd and Sight Sciences GmbH. All intercompany balances and transactions have been eliminated in consolidation. The unaudited condensed consolidated financial statements have been prepared on a basis consistent with the audited consolidated financial statements. In the opinion of management, the unaudited condensed consolidated financial statements reflect all adjustments, which include only normal recurring adjustments, necessary for the fair presentation of the Company's financial information contained herein. The condensed consolidated balance sheet as of December 31, 2023 is derived from the Company's consolidated audited financial statements as of that date. These interim condensed consolidated financial statements do not include all disclosures required by US GAAP and should be read in conjunction with the Company's audited consolidated financial statements and the accompanying notes thereto for the fiscal year ended December 31, 2023, which are contained in the Annual Report. The Company's results of operations for the six months ended June 30, 2024 are not necessarily indicative of the results to be expected for the year ending December 31, 2024 or for any other interim period. Use of Estimates The preparation of the unaudited condensed consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent liabilities at the date of the financial statements, and the reported amounts of revenues and expense during the reporting period. The most significant estimates related to the provision for credit losses, inventory excess and obsolescence, determination of the fair value of stock option grants, and provisions for income taxes and contingencies. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, and makes adjustments when facts and circumstances dictate. These estimates are based on information available as of the date of the financial statements. Actual results could differ from these estimates and such differences could be material to the Company’s financial position and results of operations. New Accounting Pronouncements Accounting Standards Recently Adopted During the six-month period ended June 30, 2024, there were no significant Accounting Standard Updates ("ASUs") issued that were adopted. Accounting Standards Not Yet Adopted In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosure. The ASU updates reportable segment disclosure requirements, primarily through requiring enhanced disclosures about significant segment expenses and information used to assess segment performance. The ASU is effective for fiscal years beginning after December 15, 2023, and interim period within fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the impact of adopting this ASU on its disclosures. In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The ASU includes amendments requiring enhanced income tax disclosures, primarily related to standardization and disaggregation of rate reconciliation categories and income taxes paid by jurisdiction. The guidance is effective for fiscal years beginning after December 15, 2024, with early adoption permitted, and should be applied either prospectively or retrospectively. The Company is currently evaluating the impact of adopting this ASU on its disclosures. As of June 30, 2024, there are no additional ASUs issued and not yet adopted that are expected to have a material impact on the Company's financial statements and related disclosures.

Fair Value Measurements

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurements

Note 3. Fair Value Measurements

Level 1—Inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.

are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities.


	June 30, 2024
	Amortized Cost		Unrealized Gains		Unrealized Losses		Aggregate Fair Value
U.S. treasury securities	$	109,300	$	8	$	—	$	109,308


	December 31, 2023
	Amortized Cost		Unrealized Gains		Unrealized Losses		Aggregate Fair Value
U.S. treasury securities	$	129,113	$	28	$	—	$	129,141

The financial statements as of June 30, 2024 and December 31, 2023 do not include any assets or liabilities that are measured at fair value on a nonrecurring basis.

Balance Sheet Components

6 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Balance Sheet Components

Note 4. Balance Sheet Components

Property and Equipment, Net

Property and equipment, net consist of the following (in thousands):


	As of June 30,			As of December 31,
	2024			2023
Tools and equipment	$	2,009		$	2,010
Computer equipment and software		37			37
Furniture and fixtures		323			323
Leasehold improvements		38			38
Construction in process		995			859
		3,402			3,267
Less: Accumulated depreciation		(1,913	)		(1,627	)
Property and equipment, net	$	1,489		$	1,640

Accrued and Other Current Liabilities

Accrued and other current liabilities consist of the following (in thousands):


	As of June 30,		As of December 31,
	2024		2023
Accrued expenses	$	3,772	$	1,639
Current portion of lease liabilities		508		573
Short-term interest payable		316		375
Other accrued liabilities		1,375		1,187
Total accrued and other current liabilities	$	5,971	$	3,774

Other Noncurrent Liabilities

Other noncurrent liabilities consist of the following (in thousands):


	As of June 30,		As of December 31,
	2024		2023
Long-term interest payable	$	196	$	1,524
Noncurrent portion of lease liabilities		747		914
Other noncurrent liabilities		76		38
Total other noncurrent liabilities	$	1,019	$	2,476

Debt

6 Months Ended

Jun. 30, 2024

Debt Disclosure [Abstract]

Debt

Note 5. Debt

Hercules Capital Loan Agreement

MidCap Loan Agreement

Maturities Schedule

Long-term and short-term debt as of June 30, 2024 and December 31, 2023, respectively, was as follows (in thousands):


	As of June 30,			As of December 31,
	2024			2023
Hercules Initial Loan	$	35,000		$	—
MidCap Term Loan		—			35,000
Total principal payments due		35,000			35,000
Less: debt discount related to warrant liability and issuance costs		(1,230	)		(1,073	)
Total amounts outstanding		33,770			33,927
Less: current portion		—			(2,219	)
Long-term debt, net	$	33,770		$	31,708

The repayment schedule relating to the Hercules Initial Loan as of June 30, 2024, is as follows (in thousands):


	Amount
2024 (remainder)		—
2025		—
2026		6,651
2027		17,283
Thereafter		11,066
Total repayments	$	35,000

Commitments and Contingencies

6 Months Ended

Jun. 30, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 6. Commitments and Contingencies

Operating Lease Obligations

Operating lease expense and supplemental cash flow information related to operating leases for the three months ended June 30, 2024 and 2023 were as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Operating lease expense	$	195	$	288	$	390	$	581
Cash paid for operating leases		210		293		420		590

Aggregate future minimum lease payments as of June 30, 2024, under these noncancelable operating leases were as follows (in thousands):


	As of June 30,
	2024
2024 (remainder)		321
2025		618
2026		497
2027		0
Total future minimum lease payments	$	1,436
Less: imputed interest		(181	)
Present value of future minimum lease payments	$	1,255
Less: current portion of operating lease liability		(508	)
Noncurrent portion of lease liabilities	$	747

Legal Proceedings

Indemnification

Stockholders' Equity

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Stockholders' Equity

Note 7. Stockholders' Equity

Common Stock

At June 30, 2024 and December 31, 2023, the Company had reserved common stock for future issuances as follows:


	June 30,		December 31,
	2024		2023
Common stock available for future grants		5,926,286		6,033,176
Common stock options issued and outstanding		4,675,830		4,980,190
Restricted stock units outstanding		4,785,524		2,721,361
Shares available for future purchase under employee stock purchase plan		1,979,540		1,488,227
Total		17,367,180		15,222,954

Common Stock Warrants

Equity Incentive Plans

6 Months Ended

Jun. 30, 2024

Share-Based Payment Arrangement [Abstract]

Equity Incentive Plans

Note 8. Equity Incentive Plans

2011 Stock Option Plan and 2021 Incentive Award Plan

In 2011, the Company established its 2011 Stock Option Plan (the “2011 Plan”) that provided for the granting of stock options to employees and nonemployees of the Company.

As of June 30, 2024 and December 31, 2023 there were 5,926,286 shares and 6,033,176 shares, respectively, of common stock available for issuance under the 2021 Plan.

Stock Option Awards

The following table summarizes stock option activity under the 2021 Plan during the periods presented:


	Number of Shares			Weighted-Average Exercise Price		Weighted-Average Contractual Term (in years)		Average Intrinsic Value (in thousands)
Balances as of December 31, 2023		4,980,190		$	9.00		7.4	$	5,924
Grants		7,377			4.43
Forfeited/cancelled		(156,554	)		9.38
Exercised/released		(155,183	)		1.00
Balances as of June 30, 2024		4,675,830		$	9.25		7.2	$	7,271
Vested and exercisable as of June 30, 2024		2,887,287		$	9.45		6.4	$	4,419
Vested and expected to vest as of June 30, 2024		4,675,830		$	9.25		7.2	$	7,271

Determination of Fair Value


	Three Months Ended June 30,		Six Months Ended June 30,
	2024	2023	2024	2023
Expected term (in years)	6.13	6.03 – 6.07	6.13	5.60 – 6.07
Expected volatility	61.67%	78.53% – 79.60%	61.67%	78.53% – 79.73%
Risk-free interest rate	4.28%	3.48% – 3.65%	4.28%	3.48% – 3.67%
Dividend yield	–	–	–	–

Restricted Stock Units

The following table summarizes restricted share award activity:


	Number of Shares			Weighted-Average Grant Date Fair Value Per Share
Outstanding, December 31, 2023		2,721,361		$	7.61
Grants		2,875,178			4.43
Forfeited/cancelled		(162,543	)		6.42
Vested		(648,472	)		8.78
Outstanding, June 30, 2024		4,785,524		$	5.57

Employee Stock Purchase Plan

As of June 30, 2024, there were 1,979,540 shares of common stock available for issuance under the ESPP.


	Three Months Ended June 30,		Six Months Ended June 30,
	2024	2023	2024	2023
Expected term (in years)	0.49 – 0.50	0.48 – 0.50	0.49 – 0.50	0.48 – 0.50
Expected volatility	100.00% – 197.51%	66.72% – 97.38%	100.00% – 197.51%	66.72% – 97.38%
Risk-free interest rate	5.37% – 5.40%	4.62% – 5.32%	5.37% – 5.40%	4.62% – 5.32%
Dividend yield	–	–	–	–

Stock-Based Compensation

The following is a summary of stock-based compensation expense by function (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Cost of goods sold	$	94	$	71	$	200	$	130
Research and development		594		587		1,199		1,115
Selling, general and administrative		3,629		3,084		7,424		6,020
Total stock-based compensation expense	$	4,317	$	3,742	$	8,823	$	7,265

Net Loss per Share Attributable to Common Stockholders

6 Months Ended

Jun. 30, 2024

Earnings Per Share [Abstract]

Net Loss per Share Attributable to Common Stockholders

Note 9. Net Loss per Share Attributable to Common Stockholders

The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the periods presented (in thousands, except share and per share data):


	Three Months Ended June 30,						Six Months Ended June 30,
	2024			2023			2024			2023
Numerator:
Net loss attributable to common stockholders	$	(12,329	)	$	(14,754	)	$	(28,595	)	$	(31,821	)
Denominator:
Weighted-average shares of common stock outstanding—basic and diluted		49,903,386			48,536,310			49,694,825			48,471,153
Net loss per share attributable to common stockholders—basic and diluted	$	(0.25	)	$	(0.30	)	$	(0.58	)	$	(0.66	)


	June 30,
	2024		2023
Stock option awards		4,675,830		4,869,644
Restricted stock units		4,785,524		1,906,435
Common stock warrants		135,686		—
Total		9,597,040		6,776,079

Segment Information

6 Months Ended

Jun. 30, 2024

Segment Reporting [Abstract]

Segment Information

Note 10. Segment Information

The following table summarizes select operating results information for each reportable segment (in thousands):


	Three Months Ended June 30,						Six Months Ended June 30,
	2024			2023			2024			2023
Revenue
Surgical Glaucoma	$	20,244		$	21,398		$	38,501		$	38,733
Dry Eye		1,126			2,073			2,134			3,563
Total		21,370			23,471			40,635			42,296
Cost of goods sold
Surgical Glaucoma		2,423			2,444			4,632			4,806
Dry Eye		602			937			1,187			1,623
Total		3,025			3,381			5,819			6,429
Gross profit
Surgical Glaucoma		17,821			18,954			33,869			33,927
Dry Eye		524			1,136			947			1,940
Total		18,345			20,090			34,816			35,867
Operating expenses		30,996			35,277			62,191			68,621
Loss from operations		(12,651	)		(15,187	)		(27,375	)		(32,754	)
Investment income		1,526			1,793			3,174			3,602
Interest expense		(1,145	)		(1,349	)		(2,350	)		(2,625	)
Loss on debt extinguishment		—			—			(1,962	)		—
Other expense, net		(44	)		(3	)		(50	)		(22	)
Loss before income taxes	$	(12,314	)	$	(14,746	)	$	(28,563	)	$	(31,799	)

Summary of Significant Accounting Policies (Policies)	6 Months Ended
Summary of Significant Accounting Policies (Policies)	Jun. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated financial statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States of America ("US GAAP") applicable to interim periods and pursuant to the instructions to Form 10-Q and Article 10 of Regulation S-X. The Company’s condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, Sight Sciences UK, Ltd and Sight Sciences GmbH. All intercompany balances and transactions have been eliminated in consolidation. The unaudited condensed consolidated financial statements have been prepared on a basis consistent with the audited consolidated financial statements. In the opinion of management, the unaudited condensed consolidated financial statements reflect all adjustments, which include only normal recurring adjustments, necessary for the fair presentation of the Company's financial information contained herein. The condensed consolidated balance sheet as of December 31, 2023 is derived from the Company's consolidated audited financial statements as of that date. These interim condensed consolidated financial statements do not include all disclosures required by US GAAP and should be read in conjunction with the Company's audited consolidated financial statements and the accompanying notes thereto for the fiscal year ended December 31, 2023, which are contained in the Annual Report. The Company's results of operations for the six months ended June 30, 2024 are not necessarily indicative of the results to be expected for the year ending December 31, 2024 or for any other interim period.
Use of Estimates	Use of Estimates The preparation of the unaudited condensed consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent liabilities at the date of the financial statements, and the reported amounts of revenues and expense during the reporting period. The most significant estimates related to the provision for credit losses, inventory excess and obsolescence, determination of the fair value of stock option grants, and provisions for income taxes and contingencies. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, and makes adjustments when facts and circumstances dictate. These estimates are based on information available as of the date of the financial statements. Actual results could differ from these estimates and such differences could be material to the Company’s financial position and results of operations.
New Accounting Pronouncements	New Accounting Pronouncements Accounting Standards Recently Adopted During the six-month period ended June 30, 2024, there were no significant Accounting Standard Updates ("ASUs") issued that were adopted. Accounting Standards Not Yet Adopted In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosure. The ASU updates reportable segment disclosure requirements, primarily through requiring enhanced disclosures about significant segment expenses and information used to assess segment performance. The ASU is effective for fiscal years beginning after December 15, 2023, and interim period within fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the impact of adopting this ASU on its disclosures. In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The ASU includes amendments requiring enhanced income tax disclosures, primarily related to standardization and disaggregation of rate reconciliation categories and income taxes paid by jurisdiction. The guidance is effective for fiscal years beginning after December 15, 2024, with early adoption permitted, and should be applied either prospectively or retrospectively. The Company is currently evaluating the impact of adopting this ASU on its disclosures. As of June 30, 2024, there are no additional ASUs issued and not yet adopted that are expected to have a material impact on the Company's financial statements and related disclosures.

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2024

Summary of Held-to-maturity debt securities at amortized cost in the financial statements.

These securities are classified as held-to-maturity and all have been purchased with original maturities of 90 days or less. Held-to-maturity debt securities are recorded at amortized cost in the financial statements.


	June 30, 2024
	Amortized Cost		Unrealized Gains		Unrealized Losses		Aggregate Fair Value
U.S. treasury securities	$	109,300	$	8	$	—	$	109,308


	December 31, 2023
	Amortized Cost		Unrealized Gains		Unrealized Losses		Aggregate Fair Value
U.S. treasury securities	$	129,113	$	28	$	—	$	129,141

Balance Sheet Components (Tables)

6 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Property and Equipment, Net

Property and equipment, net consist of the following (in thousands):


	As of June 30,			As of December 31,
	2024			2023
Tools and equipment	$	2,009		$	2,010
Computer equipment and software		37			37
Furniture and fixtures		323			323
Leasehold improvements		38			38
Construction in process		995			859
		3,402			3,267
Less: Accumulated depreciation		(1,913	)		(1,627	)
Property and equipment, net	$	1,489		$	1,640

Summary of Accrued and Other Current Liabilities

Accrued and other current liabilities consist of the following (in thousands):


	As of June 30,		As of December 31,
	2024		2023
Accrued expenses	$	3,772	$	1,639
Current portion of lease liabilities		508		573
Short-term interest payable		316		375
Other accrued liabilities		1,375		1,187
Total accrued and other current liabilities	$	5,971	$	3,774

Summary of Other Noncurrent Liabilities

Other noncurrent liabilities consist of the following (in thousands):


	As of June 30,		As of December 31,
	2024		2023
Long-term interest payable	$	196	$	1,524
Noncurrent portion of lease liabilities		747		914
Other noncurrent liabilities		76		38
Total other noncurrent liabilities	$	1,019	$	2,476

Debt (Tables)

6 Months Ended

Jun. 30, 2024

Debt Disclosure [Abstract]

Schedule of Long-term and Short-term Debt

Long-term and short-term debt as of June 30, 2024 and December 31, 2023, respectively, was as follows (in thousands):


	As of June 30,			As of December 31,
	2024			2023
Hercules Initial Loan	$	35,000		$	—
MidCap Term Loan		—			35,000
Total principal payments due		35,000			35,000
Less: debt discount related to warrant liability and issuance costs		(1,230	)		(1,073	)
Total amounts outstanding		33,770			33,927
Less: current portion		—			(2,219	)
Long-term debt, net	$	33,770		$	31,708

Repayment Schedule Relating to the Company's Debt

The repayment schedule relating to the Hercules Initial Loan as of June 30, 2024, is as follows (in thousands):


	Amount
2024 (remainder)		—
2025		—
2026		6,651
2027		17,283
Thereafter		11,066
Total repayments	$	35,000

Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2024

Commitments and Contingencies Disclosure [Abstract]

Schedule of Operating Lease Expense Recognized and Supplemental Cash Flow

Operating lease expense and supplemental cash flow information related to operating leases for the three months ended June 30, 2024 and 2023 were as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Operating lease expense	$	195	$	288	$	390	$	581
Cash paid for operating leases		210		293		420		590

Schedule of Aggregate Future Minimum Lease Payments

Aggregate future minimum lease payments as of June 30, 2024, under these noncancelable operating leases were as follows (in thousands):


	As of June 30,
	2024
2024 (remainder)		321
2025		618
2026		497
2027		0
Total future minimum lease payments	$	1,436
Less: imputed interest		(181	)
Present value of future minimum lease payments	$	1,255
Less: current portion of operating lease liability		(508	)
Noncurrent portion of lease liabilities	$	747

Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Reserved Common Stock for Future Issuances

At June 30, 2024 and December 31, 2023, the Company had reserved common stock for future issuances as follows:


	June 30,		December 31,
	2024		2023
Common stock available for future grants		5,926,286		6,033,176
Common stock options issued and outstanding		4,675,830		4,980,190
Restricted stock units outstanding		4,785,524		2,721,361
Shares available for future purchase under employee stock purchase plan		1,979,540		1,488,227
Total		17,367,180		15,222,954

Equity Incentive Plans (Tables)

6 Months Ended

Jun. 30, 2024

Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]

Summary of Stock Option Activity

The following table summarizes stock option activity under the 2021 Plan during the periods presented:


	Number of Shares			Weighted-Average Exercise Price		Weighted-Average Contractual Term (in years)		Average Intrinsic Value (in thousands)
Balances as of December 31, 2023		4,980,190		$	9.00		7.4	$	5,924
Grants		7,377			4.43
Forfeited/cancelled		(156,554	)		9.38
Exercised/released		(155,183	)		1.00
Balances as of June 30, 2024		4,675,830		$	9.25		7.2	$	7,271
Vested and exercisable as of June 30, 2024		2,887,287		$	9.45		6.4	$	4,419
Vested and expected to vest as of June 30, 2024		4,675,830		$	9.25		7.2	$	7,271

Summary of Weighted Average Valuation Assumptions Used to Estimate Fair Value of Employee Stock Options

The fair value for options granted was calculated using the following weighted average assumptions:


	Three Months Ended June 30,		Six Months Ended June 30,
	2024	2023	2024	2023
Expected term (in years)	6.13	6.03 – 6.07	6.13	5.60 – 6.07
Expected volatility	61.67%	78.53% – 79.60%	61.67%	78.53% – 79.73%
Risk-free interest rate	4.28%	3.48% – 3.65%	4.28%	3.48% – 3.67%
Dividend yield	–	–	–	–

Share-based Payment Arrangement, Restricted Stock Unit, Activity

The following table summarizes restricted share award activity:


	Number of Shares			Weighted-Average Grant Date Fair Value Per Share
Outstanding, December 31, 2023		2,721,361		$	7.61
Grants		2,875,178			4.43
Forfeited/cancelled		(162,543	)		6.42
Vested		(648,472	)		8.78
Outstanding, June 30, 2024		4,785,524		$	5.57

Summary of Stock-Based Compensation Expense by Function

The following is a summary of stock-based compensation expense by function (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Cost of goods sold	$	94	$	71	$	200	$	130
Research and development		594		587		1,199		1,115
Selling, general and administrative		3,629		3,084		7,424		6,020
Total stock-based compensation expense	$	4,317	$	3,742	$	8,823	$	7,265

2021 Employee Stock Purchase Plan

Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]

Summary of Weighted Average Valuation Assumptions Used to Estimate Fair Value of Employee Stock Options


	Three Months Ended June 30,		Six Months Ended June 30,
	2024	2023	2024	2023
Expected term (in years)	0.49 – 0.50	0.48 – 0.50	0.49 – 0.50	0.48 – 0.50
Expected volatility	100.00% – 197.51%	66.72% – 97.38%	100.00% – 197.51%	66.72% – 97.38%
Risk-free interest rate	5.37% – 5.40%	4.62% – 5.32%	5.37% – 5.40%	4.62% – 5.32%
Dividend yield	–	–	–	–

Net Loss per Share Attributable to Common Stockholders (Tables)

6 Months Ended

Jun. 30, 2024

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Net Loss per Share Attributable to Common Stockholders

The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the periods presented (in thousands, except share and per share data):


	Three Months Ended June 30,						Six Months Ended June 30,
	2024			2023			2024			2023
Numerator:
Net loss attributable to common stockholders	$	(12,329	)	$	(14,754	)	$	(28,595	)	$	(31,821	)
Denominator:
Weighted-average shares of common stock outstanding—basic and diluted		49,903,386			48,536,310			49,694,825			48,471,153
Net loss per share attributable to common stockholders—basic and diluted	$	(0.25	)	$	(0.30	)	$	(0.58	)	$	(0.66	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share


	June 30,
	2024		2023
Stock option awards		4,675,830		4,869,644
Restricted stock units		4,785,524		1,906,435
Common stock warrants		135,686		—
Total		9,597,040		6,776,079

Segment Information (Tables)

6 Months Ended

Jun. 30, 2024

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

The following table summarizes select operating results information for each reportable segment (in thousands):


	Three Months Ended June 30,						Six Months Ended June 30,
	2024			2023			2024			2023
Revenue
Surgical Glaucoma	$	20,244		$	21,398		$	38,501		$	38,733
Dry Eye		1,126			2,073			2,134			3,563
Total		21,370			23,471			40,635			42,296
Cost of goods sold
Surgical Glaucoma		2,423			2,444			4,632			4,806
Dry Eye		602			937			1,187			1,623
Total		3,025			3,381			5,819			6,429
Gross profit
Surgical Glaucoma		17,821			18,954			33,869			33,927
Dry Eye		524			1,136			947			1,940
Total		18,345			20,090			34,816			35,867
Operating expenses		30,996			35,277			62,191			68,621
Loss from operations		(12,651	)		(15,187	)		(27,375	)		(32,754	)
Investment income		1,526			1,793			3,174			3,602
Interest expense		(1,145	)		(1,349	)		(2,350	)		(2,625	)
Loss on debt extinguishment		—			—			(1,962	)		—
Other expense, net		(44	)		(3	)		(50	)		(22	)
Loss before income taxes	$	(12,314	)	$	(14,746	)	$	(28,563	)	$	(31,799	)

Company and Nature of Business - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Accumulated deficit	$ (323,385)		$ (323,385)		$ (294,790)
Net Income (Loss)	$ (12,329)	$ (14,754)	$ (28,595)	$ (31,821)

Fair value Measurement - Additional Information (Details) - Fair Value, Recurring - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Treasury bills	$ 109.3	$ 129.1
Fair Value, Inputs, Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt Instrument, Fair Value Amount	33.8	$ 33.9
Fair Value, Inputs, Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of the unissued common stock warrants	$ 0.1

Fair Value Measurement - Held-to-maturity debt securities at amortized cost (Details) - US Treasury Securities [Member] - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amortized Cost	$ 109,300	$ 129,113
Unrealized Gains	8	28
Unrealized Losses	0	0
Aggregate Fair Value	$ 109,308	$ 129,141

Balance Sheet Components - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 3,402	$ 3,267
Less: Accumulated depreciation	(1,913)	(1,627)
Property and equipment, net	1,489	1,640
Tools and Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	2,009	2,010
Computer Equipment and Software
Property Plant And Equipment [Line Items]
Property and equipment, gross	37	37
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	323	323
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	38	38
Construction In Process
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 995	$ 859

Balance Sheet Components - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Depreciation expense	$ 0.1	$ 0.1	$ 0.3	$ 0.3

Balance Sheet Components - Summary of Accrued and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued expenses	$ 3,772	$ 1,639
Current portion of lease liabilities	508	573
Short-term interest payable	316	375
Other accrued liabilities	1,375	1,187
Total accrued and other current liabilities	$ 5,971	$ 3,774

Balance Sheet Components - Summary of Other Noncurrent Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Long-term interest payable	$ 196	$ 1,524
Noncurrent portion of lease liabilities	747	914
Other noncurrent liabilities	76	38
Total other noncurrent liabilities	$ 1,019	$ 2,476

Debt - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 31, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Jan. 22, 2024
Debt Instrument [Line Items]
Loss on debt extinguishment		$ 0	$ 0	$ (1,962)	$ 0
Fair value of warrants				600
Long-term debt, net		$ 33,770		33,770		$ 31,708
Hercules Credit Agreement [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 65,000
Line of credit achievement of certain performance milestones	10,000
Line of credit facility, remaining borrowing capacity	$ 15,000
Maturity date	Jul. 01, 2028
Interest in increments period	$ 5,000
Debt instrument, frequency of periodic payment	30 months
Debt instrument interest payment extended term	36 months
Debt instrument, variable rate	10.35%
Debt instrument, Initial interest rate	10.85%
Interest Rate During Period	5.95%
Debt instrument, effective interest rate	2.35%
Interest expense, debt				$ 200
Warrants issued to purchase shares of convertible preferred stock		135,686		135,686
Class of warrant exercise price		$ 5.159		$ 5.159
Line of credit facility, current borrowing capacity							$ 35,000
Hercules Credit Agreement [Member] \| Tranche Two Loans
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 5,000
Mid Cap Financial Services
Debt Instrument [Line Items]
Loss on debt extinguishment				$ 2,000
Interest expense, debt						$ 1,500
Mid Cap Financial Services \| SOFR [Member]
Debt Instrument [Line Items]
Debt instrument, variable rate				7.00%
Mid Cap Financial Services \| Senior Secured 2019 Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 35,000		$ 35,000
Lenders [Member] \| Hercules Credit Agreement [Member]
Debt Instrument [Line Items]
Warrants Expiration Term	7 years
Warrants issued to purchase shares of convertible preferred stock	135,686
Class of warrant exercise price	$ 5.159
MidCap Credit Facility Agreements [Member]
Debt Instrument [Line Items]
Long-term debt, net		$ 35,000		$ 35,000
Percentage of long term debt fee payable		6.00%		6.00%

Debt - Schedule of Long-term and Short-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total principal payments due	$ 35,000	$ 35,000
Less: debt discount related to warrant liability and issuance costs	(1,230)	(1,073)
Total amounts outstanding	33,770	33,927
Less: current portion	0	(2,219)
Long-term debt, net	33,770	31,708
Hercules Credit Agreement [Member]
Debt Instrument [Line Items]
Total principal payments due	35,000	0
MidCap Term Loan [Member]
Debt Instrument [Line Items]
Total principal payments due	$ 0	$ 35,000

Debt - Schedule Relating to the Company's Debt (Details) $ in Thousands	Jun. 30, 2024 USD ($)
Debt Disclosure [Abstract]
2024 (remainder)	$ 0
2025	0
2026	6,651
2027	17,283
Thereafter	11,066
Total repayments	$ 35,000

Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2022	Apr. 26, 2024	Dec. 31, 2023
Supply Commitment [Line Items]
Operating lease right-of-use assets	$ 1,257		$ 1,257				$ 1,458
Remaining lease term	2 years 2 months 12 days		2 years 2 months 12 days
Operating leases, rent expense	$ 195	$ 288	$ 390	$ 581
Supply agreement [Member]
Supply Commitment [Line Items]
Extending the lease term			26
Operating lease right-of-use assets	$ 1,200		$ 1,200		$ 700
Lease, borrowing rate	11.40%		11.40%		10.75%
Operating lease term	37 months		37 months		18 months
Remaining lease term	34 months		34 months
Total base rent under lease agreement			$ 1,500		$ 700
Settled Litigation [Member]
Supply Commitment [Line Items]
Gain Contingency, Unrecorded Amount						$ 34,000
Settled Litigation [Member] \| Lost Profits [Member]
Supply Commitment [Line Items]
Gain Contingency, Unrecorded Amount						5,500
Settled Litigation [Member] \| Royalty Damages [Member]
Supply Commitment [Line Items]
Gain Contingency, Unrecorded Amount						$ 28,500

Commitments and Contingencies - Schedule of Operating Lease Expense Recognized and Supplemental Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Operating lease expense	$ 195	$ 288	$ 390	$ 581
Cash paid for operating leases	$ 210	$ 293	$ 420	$ 590

Commitments and Contingencies - Schedule of Aggregate Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
2024 (remainder)	$ 321
2025	618
2026	497
2027	0
Total future minimum lease payments	1,436
Less: imputed interest	(181)
Present value of future minimum lease payments	1,255
Less: current portion of operating lease liability	(508)	$ (573)
Noncurrent portion of lease liabilities	$ 747	$ 914

Stockholder's Equity - Additional Information (Details) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2024 USD ($) Vote $ / shares shares	Jun. 30, 2024 USD ($) $ / shares shares	Dec. 31, 2023 $ / shares shares
Subsidiary, Sale of Stock [Line Items]
Common stock, shares authorized	200,000,000	200,000,000	200,000,000
Preferred stock, shares authorized	10,000,000	10,000,000	10,000,000
Common stock, par value \| $ / shares	$ 0.001	$ 0.001	$ 0.001
Preferred stock par value \| $ / shares	$ 0.001	$ 0.001	$ 0.001
Dividends declared \| $		$ 0
Additional warrants to purchase common stock		2.00%
Number of votes entitled per share of common stock \| Vote	1
Fair value of warrants \| $		$ 600
Common stock, shares issued	50,136,131	50,136,131	49,131,363
Hercules Credit Agreement [Member]
Subsidiary, Sale of Stock [Line Items]
Warrants to purchase common stock	135,686	135,686
Class of warrant exercise price \| $ / shares	$ 5.159	$ 5.159
Maximum [Member]
Subsidiary, Sale of Stock [Line Items]
Unused warrants value \| $	$ 100	$ 100
IPO [Member]
Subsidiary, Sale of Stock [Line Items]
Common stock, shares authorized	200,000,000	200,000,000
Preferred stock, shares authorized	10,000,000	10,000,000
Common stock, par value \| $ / shares	$ 0.001	$ 0.001
Preferred stock par value \| $ / shares	$ 0.001	$ 0.001

Stockholder's Equity - Schedule of Reserved Common Stock for Future Issuances (Details) - shares	Jun. 30, 2024	Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock reserved for future issuance	17,367,180	15,222,954
Common stock available for future grants
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock reserved for future issuance	5,926,286	6,033,176
Common stock options issued and outstanding
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock reserved for future issuance	4,675,830	4,980,190
Restricted stock units outstanding
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock reserved for future issuance	4,785,524	2,721,361
Shares available for future purchase under employee stock purchase plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock reserved for future issuance	1,979,540	1,488,227

Equity Incentive Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Jan. 01, 2024	Dec. 31, 2023	Jan. 01, 2023	Jul. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average grant-date fair values of options granted			$ 2.71	$ 6.94
Aggregate intrinsic value of options exercised	$ 100		$ 700
Unrecognized stock-based compensation of unvested options	$ 10,000		$ 10,000
Weighted-average period expected to recognize			1 year 4 months 24 days
Common stock reserved for future issuance	17,367,180		17,367,180			15,222,954
Description of Transaction of Future issuance			annual increases are equal to the lesser of (i) 5% of the aggregate number of shares of common stock outstanding on the final day of the immediately preceding calendar year and (ii) such smaller number of shares of common stock as determined by the Board, subject to certain limitations
Number of Shares, Granted			7,377
Weighted-Average Exercise Price, Granted			$ 4.43
Stock based compensation	$ 1,900	$ 2,300	$ 3,800	$ 4,500
Share of common stock purchased	4,317	3,742	8,823	7,265
ESPP purchase	450	661	450	661
Restricted Stock Units RSU
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized stock-based compensation of unvested options	23,400		$ 23,400
Weighted-average period expected to recognize			2 years 10 months 24 days
Stock based compensation	$ 2,300	1,400	$ 4,600	2,500
2021 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock available for issuance	5,926,286		5,926,286			6,033,176
Common stock reserved for future issuance	5,200,000		5,200,000		2,456,568		2,414,907
2021 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Collected withholdings under plan			$ 100
Common stock reserved for future issuance	1,979,540		1,979,540		491,313		482,981	850,000
Stock based compensation	$ 200	$ 100	$ 300	$ 300
ESPP purchase, Shares			232,290
ESPP purchase			$ 500

Equity Incentive Plans - Summary of Company Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares	4,980,190
Number of Shares, Granted	7,377
Forfeited/cancelled	(156,554)
Number of Shares, Exercised/released	(155,183)
Number of Shares	4,675,830	4,980,190
Number of Shares Vested and exercisable as of June 30, 2024	2,887,287
Number of Shares, Vested and expected to vest as of June 30, 2024	4,675,830
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted-Average Exercise Price	$ 9
Weighted-Average Exercise Price, Granted	4.43
Weighted-Average Exercise Price, Forfeited/cancelled	9.38
Weighted-Average Exercise Price, Exercised/released	1
Weighted-Average Exercise Price	9.25	$ 9
Vested and exercisable as of June 30, 2024	9.45
Vested and expected to vest as of June 30, 2024	$ 9.25
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term	7 years 2 months 12 days	7 years 4 months 24 days
Weighted average contractual term, vested and exercisable	6 years 4 months 24 days
Weighted average contractual term, vested and expected	7 years 2 months 12 days
Average Intrinsic Value	$ 7,271	$ 5,924
Average Intrinsic Value, Vested and exercisable as of June 30, 2024	4,419
Average Intrinsic Value, Vested and expected as of June 30, 2024	$ 7,271

Equity Incentive Plans - Summary of Stock Based Compensation Fair Value Assumptions (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected term (in years)	6 years 1 month 17 days		6 years 1 month 17 days
Expected volatility	61.67%		61.67%
Risk-free interest rate	4.28%		4.28%
Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected term (in years)		6 years 25 days		6 years 25 days
Expected volatility		79.60%		79.73%
Risk-free interest rate		3.65%		3.67%
Maximum \| 2021 Employee Stock Purchase Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected term (in years)	6 months	6 months	6 months	6 months
Expected volatility	197.51%	97.38%	197.51%	97.38%
Risk-free interest rate	5.40%	5.32%	5.40%	5.32%
Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected term (in years)		6 years 10 days		5 years 7 months 6 days
Expected volatility		78.53%		78.53%
Risk-free interest rate		3.48%		3.48%
Minimum \| 2021 Employee Stock Purchase Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected term (in years)	5 months 26 days	5 months 23 days	5 months 26 days	5 months 23 days
Expected volatility	100.00%	66.72%	100.00%	66.72%
Risk-free interest rate	5.37%	4.62%	5.37%	4.62%

Equity Incentive Plans - Summary of Share-Based Compensation Expense By Function (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	$ 4,317	$ 3,742	$ 8,823	$ 7,265
Cost of Goods Sold
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	94	71	200	130
Research and Development Expenses
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	594	587	1,199	1,115
Selling, General and Administrative Expenses
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expense	$ 3,629	$ 3,084	$ 7,424	$ 6,020

Equity Incentive Plans - Summarizes restricted share award activity under the 2021 Plan (Details)	6 Months Ended
	Jun. 30, 2024 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Forfeited/cancelled \| shares	(156,554)
Weighted-Average Exercise Price, Forfeited/cancelled \| $ / shares	$ 9.38
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Beginning Balance \| shares	2,721,361
Grants \| shares	2,875,178
Forfeited/cancelled \| shares	(162,543)
Vested \| shares	(648,472)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance \| shares	4,785,524
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Beginning Balance \| $ / shares	$ 7.61
Weighted average, Grants \| $ / shares	4.43
Weighted-Average Exercise Price, Forfeited/cancelled \| $ / shares	6.42
Weighted average, Vested \| $ / shares	8.78
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value, Ending Balance \| $ / shares	$ 5.57

Net Loss Per Share Attributable to Common Stockholders - Schedule of Computation of Basic and Diluted Net Loss per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator:
Net loss attributable to common stockholders	$ (12,329)	$ (14,754)	$ (28,595)	$ (31,821)
Denominator:
Weighted-average shares of common stock outstanding-basic	49,903,386	48,536,310	49,694,825	48,471,153
Weighted-average shares of common stock outstanding-diluted	49,903,386	48,536,310	49,694,825	48,471,153
Net loss per share attributable to common stockholders-basic	$ (0.25)	$ (0.3)	$ (0.58)	$ (0.66)
Net loss per share attributable to common stockholders-diluted	$ (0.25)	$ (0.3)	$ (0.58)	$ (0.66)

Net Loss Per Share Attributable to Common Stockholders - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Redeemable convertible preferred stock	9,597,040	6,776,079
Stock option awards
Redeemable convertible preferred stock	4,675,830	4,869,644
Restricted Stock Units
Redeemable convertible preferred stock	4,785,524	1,906,435
Common stock warrants
Redeemable convertible preferred stock	135,686	0

Segment Information - Additional Information (Details)	6 Months Ended
Segment Information - Additional Information (Details)	Jun. 30, 2024 Segment
Segment Reporting [Abstract]
Number of Reportable Segments	2

Segment Information - Summary of Operating Result Information for Each Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue
Revenue	$ 21,370	$ 23,471	$ 40,635	$ 42,296
Cost of goods sold
Cost of goods sold	3,025	3,381	5,819	6,429
Gross profit
Gross profit	18,345	20,090	34,816	35,867
Operating expenses	30,996	35,277	62,191	68,621
Loss from operations	(12,651)	(15,187)	(27,375)	(32,754)
Investment income	1,526	1,793	3,174	3,602
Interest expense	(1,145)	(1,349)	(2,350)	(2,625)
Loss on debt extinguishment	0	0	(1,962)	0
Other expense, net	(44)	(3)	(50)	(22)
Loss before income taxes	(12,314)	(14,746)	(28,563)	(31,799)
Surgical Glaucoma
Revenue
Revenue	20,244	21,398	38,501	38,733
Cost of goods sold
Cost of goods sold	2,423	2,444	4,632	4,806
Gross profit
Gross profit	17,821	18,954	33,869	33,927
Dry Eye
Revenue
Revenue	1,126	2,073	2,134	3,563
Cost of goods sold
Cost of goods sold	602	937	1,187	1,623
Gross profit
Gross profit	$ 524	$ 1,136	$ 947	$ 1,940