The eye defect, astigmatism can be corrected by using

Convex lens

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Concave lens

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Cylindrical lens

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Surgery

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Solution

The correct option is B Cylindrical lens
Astigmatism is caused by an irregular curvature of the eye's cornea or lens. This can change the way to pass light and causes blurry or distorted vision. It is characterized by the difficulty seeing at night, eyestrain, eye irritation and headaches. It can be corrected by using spherical cylindrical glasses. Hence, the correct answer is option C.

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Similar questions

Astigmatism (for a human eye) can be removed by using ___.

In an astigmatic eye, the shape of cornea is ___. This defect is corrected using a ___ lens.

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