Question

what is cataract? how it can be rectified ​

Answer 1

When the protein clumps up, it clouds the lens and reduces the light that reaches the retina. The clouding may become severe enough to cause blurred vision. Most age-related cataracts develop from protein clumpings. When a

cataract is small, the cloudiness affects only a small part of the lens.

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Answer 2

Cataract is an eye disease in which both the short sighted ness and farsightedness are effected.
For its cure there is a surgery in which the doctors remove old eye lens and fit the new eye lens