Question

Give the biological/technical terms for the following:

The lens of eye losing flexibility resulting in a kind of long-sightedness in middle aged people.

Answer 1

Presbyopia:

1. Presbyopia is also known as old age long-sightedness.
2. After the age of 40 lenses of the eye lose their elasticity.
3. Due to the loss of elasticity of the lens, it fails to focus near objects.
4. It can be corrected by using glass with bifocal or convex lenses.
5. Hence, the lens of the eyes loses flexibility resulting in a kind of long-sightedness in middle-aged people known as presbyopia.