Dry Eye Syndrome – Most Common Eye Disease

Written by editor in Wednesday, May 11th 2011   

There are many eye diseases in the world but the most common eye disease is Dry Eye Syndrome.

Dry Eye Syndrome Definition

Dry Eye Syndrome is a common disease of the tear film; it affects most of the population older than 40 years of age. The 25-30 million of people are affected due to this disease in United States.

This disease is more common in Women than in men.

A thin layer of tears help to keep Eye and vision comfortable. This layer of tears is made up of 3 layers:

The inner most layer is the thinnest and it is a layer of Mucus. Mucus helps keep a watery layer over the Eye.

The middle layer is thick. This layer is a Salt-Water solution. This layer keeps the Eye moist, comfortable; it also drains out the Dust in the Eye.

The upper layer is a thin layer of Lipids. Lipids consist of fats and oil. The function of this layer is to decrease the evaporation of Watery layer.