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by Alison N. Haughton, MA
Astigmatism is a condition that results in blurred, unfocused, or fuzzy vision. The cornea (the front surface of the eye) or lens (located behind the cornea) has an abnormal or irregular curve.
There are 2 common types of astigmatism:
Risk Factors TOP
Factors that may increase your chance of astigmatism include:
Some people with astigmatism may have no symptoms. In those that have symptoms, astigmatism may cause:
Symptoms vary depending on the extent of the astigmatism.
Your eye doctor will ask about your symptoms and medical history. An examination of your eyes will be done.
Tests to evaluate your eyes may include:
Treatment options may include the following:
Corrective lenses, such as glasses or toric contact lens, are prescribed to offset the eye’s visual abnormalities or defects.
To correct severe astigmatism, your eye surgeon might use special knives or a laser beam to correct the abnormal or irregular curve of the cornea.
There are 3 types of surgical procedures that an eye surgeon might perform:
There are no current guidelines to prevent astigmatism. See your eye doctor for regular check-ups.
Eye Smart—American Ophthalmology
National Eye Institute (NEI)
Canadian Ophthalmological Society
The Canadian National Institute for the Blind
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Last reviewed December 2014 by Michael Woods, MD
Last Updated: 12/20/2014
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