Systane Eye Drops are used as a lubricant for dry eyes. Dry eye is an ocular disease caused by a decreased quantity of tear film, which maintains moisture on the eye's surface, helps in the movement of eyelids, and prevents cells from drying out. Systane Eye Drops contain polyethylene glycol and propylene glycol, which add moisture by binding to the damaged part of the epithelial cells. It helps to relieve burning and irritation caused by dry eyes, as well as redness and swelling. It can also treat a wide range of problems associated with dry eyes, including scratchy eyes and excessive tearing.