Sight Sciences develops and sells interventional medical devices that treat two prevalent eye diseases: glaucoma and dry eye disease. The company's core products include the OMNI and SION surgical systems for glaucoma procedures that reduce intraocular pressure by addressing blockages in the eye's fluid-drainage pathway, and the TearCare System, a device that uses localized heat therapy to treat dry eye caused by meibomian gland disease. Revenue is generated when eye care facilities and clinics bill insurance companies and patients for procedures using these devices, with sales conducted through dedicated direct sales organizations targeting ambulatory surgery centers, hospital outpatient departments, and optometry and ophthalmology practices.