Dry eye syndrome is a common disorder of the normal tear film that results from decreased tear production, excessive tear evaporation, and an abnormality in the production of mucus or lipids normally found in the tear layer, or a combination of these.

Dry Eye Syndrome affects approximately 32% of people between the ages of 20 and 40 years and 15% of adults over age 60.

In India, over 75% of cases of dry eye disease are due to tear film instability and in next ten years the prevalence will increase to 40%. .