what is cataract how is it caused write the ways by which it can be corrected
Answers
Ans :- Cataract means bluring of eye lens.It is caused due to Harmful rays of sunlight. it can be correct by surgical operation to replace a new lens from one.
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Cataracts occur when the normally clear lens of the eye becomes cloudy, restricting the amount of light that reaches the retina, leading to a decrease in vision.
Cause
The lens is mostly made from water and protein – it’s thought cataracts develop because of changes in the proteins, that result in cloudy vision. The most common cause of cataracts is ageing. Cataracts are a natural part of ageing and most elderly people with cataracts are healthy and have no other eye disease. The exact cause of age-related cataracts is unclear
It cannot be corrected by lens specs etc
But it can be cured by surgical method
The symptoms of early cataracts may be improved with new prescription glasses and stronger lighting. However, once cataracts progress to the point that impaired vision reduces a person’s quality of life and interferes with daily activities surgery is the only effective treatment.