A member asked:

What does cylindrical power mean?

3 doctors weighed in across 2 answers

Astigmatism: If the front of the eye or the internal lens is not a perfect sphere and is slightly oval, it may require special correction in one direction. This is referred to as cylindrical power necessary to correct the ovalness. It is also referred to as the astigmatism of the eye.

Answered 6/17/2018

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Astigmatism: This refers to the type of lens in glasses that corrects for astigmatism.

Answered 6/10/2018

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