Question

Define condition of cataract in human eye

Answer 1

Answer
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cataract can occur in either or both eyes. It cannot spread from one eye to the other.

The lens is a clear part of the eye that helps to focus light, or an image, on the retina. The retina is the light-sensitive tissue at the back of the eye.

cause :- The lens lies behind the iris and the pupil. It works much like a camera lens.

Answer 2

A cataract is a clouding of the lens in the eye which leads to a decrease in vision. Cataracts often develop slowly and can affect one or both eyes. Symptoms may include faded colors, blurry vision, halos around light, trouble with bright lights, and trouble seeing at night.