Astigmatism: Overview

Astigmatism is an eye disorder where there is irregular differences in the field of vision. The disorder is similar to near-sightedness (myopia) or far-sightedness (hyperopia), but the distortion of vision is less regular than in those disorders. Astigmatism may be caused by abnormal curvature of the lens or the cornea. Treatment is by eyeglasses or contact lenses.

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