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Other links at Refractive Errors > Astigmatism
Presents an introduction, causes, and treatments.
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A consumer guide to Astigmatism; causes and treatments.
Astigmatism is a refractive error where people are unable to see objects
clearly from a distance or up close. Astigmatism may occur in varying degrees in each eye and can accompany myopia
or hyperopia. A minor degree of astigmatism is usually not noticeable or comes with slight blurriness but a
Definition, symptoms, tests and treatment of the disorder.
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Other encyclopedia articles:
Astigmatism is an eye disorder in which the cornea (the clear tissue covering the front of the eye) is abnormally curved, causing out-of-focus vision.
The cause of astigmatism is unknown. It is usually present from birth, and often occurs together with
. A minor
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