15/01/2016
Cataract
Normally, the lens in the eye is clear, allowing light rays to pass through easily and focus on the retina to get clear vision. As cataract develops, the lens becomes cloudy as in the picture above and interferes with the transmission of light. The resulting image on the retina is thus blurred.
Causes
It usually occurs in patients above the age of 40. In some cases, it occurs in children too- Eye diseases such as glaucoma, iritis, eye tumours and diabetes may lead to cataract- Prolonged use of steroid drugs and eye injuries
Symptoms
Blurring or dimness of vision
Feeling of a film over the eyes
Sensitivity to light and glare-
Change in colour of pupil
