The Company and Nature of Business	12 Months Ended
Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Company and Nature of Business	Note 1. The Company and Nature of Business Description of Business Sight Sciences, Inc. (the “Company”) was incorporated in the State of Delaware in 2010. The Company is located and headquartered in Menlo Park, California and has principal commercial offices in Southlake, Texas. 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 has two reportable operating segments: Surgical Glaucoma and Dry Eye. The product portfolio for the Surgical Glaucoma segment features the OMNI® Surgical System, a device that facilitates the performance of both canaloplasty and trabeculotomy with a single device and single corneal incision to reduce intraocular pressure in adult patients with primary open-angle glaucoma, as well as the SION™ Surgical Instrument, the first bladeless device used in goniotomy. The product portfolio for the Dry Eye segment consists of the TearCare® System ("TearCare") for ophthalmologists and optometrists. TearCare is a wearable eyelid technology that delivers highly targeted and adjustable heat to the meibomian glands of the eyelids in adult patients with evaporative dry eye disease due to meibomian gland disfunction. Initial Public Offering In July 2021, the Company completed an initial public offering (“IPO”) of its common stock in which the Company issued and sold 10,000,000 shares of its common stock, and sold an additional 1,500,000 shares of common stock upon the full exercise of the underwriters’ option to purchase additional shares of the Company's common stock. These sales occurred at the initial public offering price of $24.00 per share. The Company received net proceeds of approximately $252.2 million from the IPO. Immediately prior to the closing of the IPO, all then-outstanding shares of redeemable convertible preferred stock were converted into 25,534,404 shares of common stock. Further, all outstanding redeemable convertible preferred stock warrants were converted into warrants to purchase 659,028 shares of common stock, which resulted in the reclassification of the convertible preferred stock warrant liability to additional paid-in capital. Significant Risks and Uncertainties Since inception, the Company has incurred losses and negative cash flows from operations. As of December 31, 2022, the Company had an accumulated deficit of $239.2 million and recorded a net loss of $86.2 million for the year 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 financial statements. Any failure to generate increased revenues, 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. Outbreaks of infectious diseases, including the COVID-19 pandemic, have impacted, and may in the future impact, demand for the Company's products, which are used in procedures and therapies that are considered elective. These incidents may cause the Company to experience reduced customer demand and may have an unfavorable impact on other areas of the Company's business including, but not limited to, supply chain, third party manufacturing, research and development costs and clinical studies. The full effect of these incidents on the Company's financial condition and results of operations is uncertain and cannot be predicted with confidence.

The Company and Nature of Business

12 Months Ended

Dec. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Note 1. The Company and Nature of Business

Description of Business

Sight Sciences, Inc. (the “Company”) was incorporated in the State of Delaware in 2010. The Company is located and headquartered in Menlo Park, California and has principal commercial offices in Southlake, Texas. 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 has two reportable operating segments: Surgical Glaucoma and Dry Eye. The product portfolio for the Surgical Glaucoma segment features the OMNI® Surgical System, a device that facilitates the performance of both canaloplasty and trabeculotomy with a single device and single corneal incision to reduce intraocular pressure in adult patients with primary open-angle glaucoma, as well as the SION™ Surgical Instrument, the first bladeless device used in goniotomy. The product portfolio for the Dry Eye segment consists of the TearCare® System ("TearCare") for ophthalmologists and optometrists. TearCare is a wearable eyelid technology that delivers highly targeted and adjustable heat to the meibomian glands of the eyelids in adult patients with evaporative dry eye disease due to meibomian gland disfunction.

Initial Public Offering

In July 2021, the Company completed an initial public offering (“IPO”) of its common stock in which the Company issued and sold 10,000,000 shares of its common stock, and sold an additional 1,500,000 shares of common stock upon the full exercise of the underwriters’ option to purchase additional shares of the Company's common stock. These sales occurred at the initial public offering price of $24.00 per share. The Company received net proceeds of approximately $252.2 million from the IPO.

Immediately prior to the closing of the IPO, all then-outstanding shares of redeemable convertible preferred stock were converted into 25,534,404 shares of common stock. Further, all outstanding redeemable convertible preferred stock warrants were converted into warrants to purchase 659,028 shares of common stock, which resulted in the reclassification of the convertible preferred stock warrant liability to additional paid-in capital.

Significant Risks and Uncertainties

Since inception, the Company has incurred losses and negative cash flows from operations. As of December 31, 2022, the Company had an accumulated deficit of $239.2 million and recorded a net loss of $86.2 million for the year 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 financial statements. Any failure to generate increased revenues, 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.

Outbreaks of infectious diseases, including the COVID-19 pandemic, have impacted, and may in the future impact, demand for the Company's products, which are used in procedures and therapies that are considered elective. These incidents may cause the Company to experience reduced customer demand and may have an unfavorable impact on other areas of the Company's business including, but not limited to, supply chain, third party manufacturing, research and development costs and clinical studies. The full effect of these incidents on the Company's financial condition and results of operations is uncertain and cannot be predicted with confidence.