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What causes astigmatism?

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Most people with astigmatism are born with it, and no one knows what causes it. If it comes on later, it could result from eye injury or disease.

From: Astigmatism Diagnosis and Treatment WebMD Medical Reference

SOURCES: 

Bradford, C (Editor) . American Academy of Ophthalmology, 2004.  Basic Ophthalmology

American Academy of Ophthalmology: “What Is Astigmatism?” and “What Causes Astigmatism?”

National Eye Institute: “Facts About Astigmatism.”

Reviewed by Alan Kozarsky on September 09, 2018

SOURCES: 

Bradford, C (Editor) . American Academy of Ophthalmology, 2004.  Basic Ophthalmology

American Academy of Ophthalmology: “What Is Astigmatism?” and “What Causes Astigmatism?”

National Eye Institute: “Facts About Astigmatism.”

Reviewed by Alan Kozarsky on September 09, 2018

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How can a vision test help in the diagnosis of astigmatism?

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