what is blindness?can blindness be cured?
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blindness is a state when a person is not able to see things around him . yes corneal blindness can be cured if somone donats you eyes
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Blindness is of two types Short and Long
In case of Short we can not see things sharply at long distances as pair of rays converge before retina ( after passing through Eye lens) In this case we use concave lens.
For Long image forms behind the Retina it can be cured by Using Convex lens
In case of Short we can not see things sharply at long distances as pair of rays converge before retina ( after passing through Eye lens) In this case we use concave lens.
For Long image forms behind the Retina it can be cured by Using Convex lens
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