explain cataract and colour-blindness
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cataract......
the crystalline lens of some people in old age becomes hazy or even opaque due to development of membrane over it which leads to decrease or loss of vision of eye .
this can be removed by surgery to restore clear vision
colour blindness....
some people do not possess some cone cells that respond to certain specific colour .
this is genetic disorder called colour blindness..
hope tis ans will help u.....
the crystalline lens of some people in old age becomes hazy or even opaque due to development of membrane over it which leads to decrease or loss of vision of eye .
this can be removed by surgery to restore clear vision
colour blindness....
some people do not possess some cone cells that respond to certain specific colour .
this is genetic disorder called colour blindness..
hope tis ans will help u.....
Answered by
0
it is a defect in eye cataract
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