What is astigmatism? - Buy Cheap Glasses Online, Prescription Glasses Frames Expert

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09-23-2010, 08:02 PM

Natalya Eyeglasses Natalya Eyeglasses is offline

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What is astigmatism?

What is astigmatism?
Astigmatism may accompany farsightedness or nearsightedness. Usually it is caused by an irregularly shaped cornea (called corneal astigmatism).
But sometimes astigmatism results from an irregularly shaped lens, which is located behind the cornea.
But most astigmatism are hereditary.

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