What is a Cataract?

Cataract is the clouding of the crystalline lens of the eye. The crystalline lens, which is located behind the iris (the colored part of the eye), is normally clear. Light passes through it to reach the retina, the posterior surface of the eye. With age this lens loses its original texture and begins to blur. As a result, light does not enter the bulb at full intensity and vision is gradually reduced.