Which one of the following is used to remove astigmatism for a human eye?

Concave lens

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Convex lens

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Cylindrical lens

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Prismatic lens

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Solution

The correct option is D Cylindrical lens
Cylindrical lens is used to remove the astigmatism for a human eye. Concave lens is used for myopic eye and convex lens is used for hypermetropic eye.

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[CPMT 1972; MP PET/PMT 1988; CBSE PMT 1990]

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