TearScience develops, manufactures and markets ophthalmic medical devices aiding in the identification and treatment of Meibomian gland Dysfunction, also known as Dry eye disease. LipiView Ocular Surface uses Interferometry to measure the thickness of the tear film oily lipid layer and LipiFlow Thermal Pulsation System uses heat and pressure to unblock obstructed Meibomian glands to reduce dry eye symptoms.