Question

an old person is unable to see clearly nearby object as well as distant objects:(a) what defect of vision is he suffering from? (b) what kind of lens will be required to see clearly the nearby as well as distant objects?give reason.

Answer 1

Answer:

In this case the person is suffering from Presbyopia.

Explanation:

In old age, the power accommodation of the eye is diminished due to which person can see neither the near object nor the far flung object.

The Presbyopia affected person uses Bifocal lens of suitable focal length.