Tears Naturale Free Eye Drops contain Dextran/Hypromellose to help treat your symptoms of dry eye that can be caused by heating/air conditioner, long hours of computer use or reading, wind, sun, pollution, and certain medications you may be taking. To ease the irritation, itching, and burning, Tears Naturale Free Eye Drops will help relieve your dry eyes by locking in moisture and slowing down your tear film evaporation. Remove contact lenses before instilling Tears Naturale Free Eye Drops and wait for vision to return before you operate a vehicle.