Question

What is presbyopia ?state it cause how is it corrected?

Answer 1

Most experts believe presbyopia is caused by changes to the lens inside the eye. As people age, the lens becomes harder and less elastic, making it more difficult for the eye to focus on close objects. For centuriespresbyopia was corrected with the use of bifocal eyeglasses.


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Answer 2

Hey mate ! Ur answer is here.....

Presbyopia is vision defect when the ability of accomodation of the eye usually decreases with ageing.....

This happens due to weakening of ciliary muscles of the eye lens.....

It can be corrected by bi-focal lenses.....


Hope it helps u.....