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It is possible that the main title of the report Keratoconus is not the name you expected.

Disorder Subdivisions

  • None

General Discussion

Keratoconus is an eye (ocular) disorder characterized by progressive thinning and changes in the shape of the cornea. The cornea is the thin, clear outer layer of the eye and is normally rounded or dome-shaped. In those with keratoconus, slowly progressive thinning of the cornea causes a cone-shaped bulge to develop towards the center of the cornea in the areas of greatest thinning. Affected individuals develop blurry or distorted vision, sensitivity to light (photophobia), and additional vision problems. Keratoconus often begins at puberty and most often is seen in teen-agers or young adults. The specific underlying cause is not fully understood and most likely the condition results from the interaction of multiple factors including genetic and environmental ones. One know factor to worsen cornea weakness is eye rubbing. In some cases, keratoconus may occur as part of a larger disorder. Keratoconus is treated with glasses or contact lenses early in the condition. A small portion of individuals may require surgery.

Supporting Organizations

Cornea Research Foundation of America

9002 North Meridian Street
Ste. 212
Indianapolis, IN 46260
Tel: (317)844-5610
Fax: (317)814-2806
Tel: (800)317-3937

Corneal Dystrophy Foundation

6066 McAbee Rd.
San Jose, CA 95120
Fax: (408)490-2775
Tel: (866)807-8965

Eye Bank Association of America

1015 18th Street, NW
Suite 1010
Washington, DC 20036
Tel: (202)775-4999
Fax: (202)429-6036

Genetic and Rare Diseases (GARD) Information Center

PO Box 8126
Gaithersburg, MD 20898-8126
Tel: (301)251-4925
Fax: (301)251-4911
Tel: (888)205-2311

NIH/National Eye Institute

31 Center Dr
MSC 2510
Bethesda, MD 20892-2510
United States
Tel: (301)496-5248
Fax: (301)402-1065

National Keratoconus Foundation

6222 Wilshire Blvd.
Ste. 260
Los Angeles, CA 90048
Tel: (310)623-4466
Fax: (310)623-1837
Tel: (800)521-2524

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders (NORD). For a full-text version of this report, go to and click on Rare Disease Database under "Rare Disease Information".

The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only.

It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report.

This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.

Last Updated:  5/2/2016
Copyright  2016 National Organization for Rare Disorders, Inc.