Question

What is cataract and how can it be corrected. Explain with a digram?

Answer 1

Explanation: 3 Marks
Diagram: 2 Marks

1. Sometimes, particularly in old age, eyesight becomes foggy. It is due to the eye lens becoming cloudy.
2. When this happens, a person is said to have cataract. It is possible to treat this defect.
3. The opaque lens is removed and a new artificial lens is inserted. Modern technology has made this procedure much simpler and safer.