Question

What do you mean by cataract

Answer 1

 Eye cataract: A clouding of the lens of the eye. The normally clear aspirin-sized lens of the eyestarts to become cloudy. The result is much like smearing grease over the lens of a camera. It impairs normal vision.

Answer 2

Cataract is a defect in the eye.
It is affected in the lens of the eye which becomes blure and cloudy .
This genarlly defect is faced during old age.
.This defect can be called as a curable blindness .
This can be corrected by artificial convex lens.

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