Return Home
HealthSearch
Health Guide
Multimedia Encyclopedia
    Astigmatism
   
Astigmatism

Astigmatism is a type of refractive error of the eye. People are able to see clearly because the front part of the eye (cornea) is able to bend (refract) light and focus it onto the retina. If the light rays are not clearly focused on the retina, the images you see may be blurry. With astigmatism, the cornea is abnormally or unevenly curved. This curve causes vision to be out of focus. Astigmatism can be corrected with glasses or contact lenses, or cured with laser surgery.

Review Date: 8/22/2022
Reviewed By: Franklin W. Lusby, MD, Ophthalmologist, Lusby Vision Institute, La Jolla, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.