What types of OTC eye-care products are there?
There are seven types of OTC eye-care products available. Each product contains one or more active and inactive ingredients. • Artificial tear drop: Lubricants (also called artificial tears) are synthetic (manmade), water-based solutions that are used to lubricate the eye and thicken tears. Artificial tears are formulated as solutions or suspensions, varying in viscosity. Popular examples of artificial tears include AquaSite, Bion Tears, Celluvisc, Duratears, Gen Teal, HypoTears, Liquifilm Tears, OcuCoat, Refresh, Systane, Tears Naturale, and TheraTears. Many people develop sensitivity to the preservatives in these solutions, causing increasing redness, burning or itching. Most of these products are also available in a preservative-free (PF) form. Artificial tears usually are used two to five times a day as needed for relief of symptoms. • Ointments or emollients: Ointments also are useful lubricants. These products are not water-based and contain lubricating ingredients similar to pet