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Question

What is the cause of cataract and how it can be corrected?

A
Cause: Irregular shape of cornea
Correction: By surgery
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B
Cause: Formation of membrane over the eye lens
Correction: By using cylindrical lens
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C
Cause: Irregular shape of cornea
Correction: By using cylindrical lens
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D
Cause: Formation of membrane over the eye lens
Correction: By surgery
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Solution

The correct option is D Cause: Formation of membrane over the eye lens
Correction: By surgery
Due to the formation of a membrane over the eye lens, it loses its transparency and becomes opaque which causes the cataract defect. This defect can be corrected by surgically removing this opaque membrane. This defect is more common in older people but can happen in younger people as well.

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