Question

Indications are given about an eye disorder:
(a) Aged people are affected.
(b) Gradual loss of power of vision.
i. Identify this disorder.
ii. What is the reason for this disorder?

Answer 1

i. Cataract is the disorder in aged people in which there is a gradual loss of power of vision.
ii. In this disorder the eye lens becomes opaque. This leads to diminished vision which may cause blindness gradually.