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What is Cataract ?
Cataract is a medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision.

How is it cured ?
For correcting it eyeglasses, including bifocals or contacts, may be prescribed, eliminating the need for surgery at that time.Or else surgery may be required.

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Long exposure to ultavoilet light, effect of diabeties hyper tention and old age can result in a condition of cataract
cataract results in a cloudy translucent eye lens. this cloudiness affects the ability of eye to accomodate
The  horizontal field of view for a single eye is 150 degrees
stereo vision position of eyes help us to see maximum possible no. of objects around us

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cure ?
 i don"t know so i didn't mention