Question

The cause of presbyopia is

• A. cloudy lens
• B. accident
• C. elongated eyeball
• D. weak ciliary muscle and inflexible eye lens

Answer 1

The correct option is D weak ciliary muscle and inflexible eye lens

Presbyopia occurs in old age with the eye, when the eye-lens hardens and loses its flexibility due to weak ciliary muscles.

In this condition, the human eye becomes unable to focus on distance as well as nearby objects.

Hence, $\left(D\right)$ is the correct answer.

Note: Presbyopia is caused by a hardening of the lens of your eye, which occurs with ageing. As your lens becomes less flexible, it can no longer change shape to focus on close-up images. As a result, these images appear out of focus.