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Astigmatism can be corrected by using

 

Option: 1

Convex lens

 


Option: 2

Concave lens

 


Option: 3

Cylindrical lenses

 


Option: 4

Both a and b

 


Answers (1)

best_answer

 

As we have discussed in Disorders of Eye:

Astigmatism: This abnormality of vision is due to the irregularities in the shape of the lens and cornea. The lens shows different curvatures in different regions of the eye. So the light rays are not brought into sharp focus on the retina. This defect is corrected by the cylindrical lens.

Hence, Cylindrical lenses is the correct option.

Posted by

Kuldeep Maurya

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