An old person is unable to see nearby object as well as distance objects what defect of vision is he suffering from
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presbyopia hope it helps you
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Answer:
The defect of eye in which a person is unable to see both far as well as near objects clearly is called presbyopia.
Causes of presbyopia:
This defect of vision commonly occurs to old people because of the following reasons:
Weakening of the ciliary muscles
Reduction in the flexibility of the eye lens
Correction of presbyopia:
This type of defect can be corrected by using spectacles having bi-focal lenses in which upper part consists of a concave lens to correct myopia (shortsightedness) used for distant visions and the lower part consists of a convex lens to correct hypermetropia (longsightedness) sused for reading purposes.
Explanation:
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