Fill in the blanks with correct words.
Astigmatism is corrected by using or lenses.

spherical

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cylindrical

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Solution

Astigmatism:
Irregular curvature of the cornea or lens of the eye causes astigmatism.
This can produce hazy or distorted vision by altering the way light passes through the eye.
It causes problems seeing at night, as well as eye strain, discomfort, and headaches.
Spherical cylindrical glasses can be used to rectify them.
Final answer: Astigmatism is corrected by using spherical or cylindrical lenses.

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Fill in the blanks with correct words.Astigmatism is corrected by using ________ or ________ lenses.

Fill in the blanks with correct words.
Astigmatism is corrected by using or lenses.