Question

explain presbyopia. how can this be corrected?

Answer 1

In old age, The the near point of the eyes gets remitted due to reduce in the flexiblity of eye lens and the ciliary muscles.The person suffering from this might not see nearby objects clearly.

This can be corrected by using eye lens or by surgery.

Hope this helps.
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Answer 2

most experts believe presbyopia is caused by change to the lens inside the eye . as people age,the lens became harder and less elastic , making it more difficult for the eye to presbyopia was corrected with the use of bifocal eyeglasses.