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It is possible that the main title of the report Leber Hereditary Optic Neuropathy is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
Leber hereditary optic neuropathy (LHON) is mainly characterized by bilateral, painless subacute loss of central vision during young adult life. In most cases, symptoms begin with one eye first, followed a few weeks later by visual failure in the other eye. Extremely rarely there may be neurologic abnormalities, such as peripheral neuropathy, postural tremor, nonspecific myopathy, and movement disorders. LHON is caused by mutations in mitochondrial DNA and it is transmitted by maternal inheritance. LHON affects approximately 1:50,000 people. Many carriers never suffer significant visual loss; males are about four to five times more likely than females to be affected.
111 E 59th St
New York, NY 10022-1202
United Mitochondrial Disease Foundation
8085 Saltsburg Road Suite 201
Pittsburgh, PA 15239
National Association for Parents of Children with Visual Impairments (NAPVI)
P.O. Box 317
Watertown, MA 02272-0317
National Federation of the Blind
200 East Wells Street
at Jernigan Place
Baltimore, MD 21230
American Foundation for the Blind
2 Penn Plaza
New York, NY 10121
American Council of the Blind
2200 Wilson Boulevard
Arlington, VA 22201
Guiding Eyes for the Blind, Inc.
611 Granite Springs Road
Yorktown Heights, NY 10598
NIH/National Eye Institute
31 Center Dr
Bethesda, MD 20892-2510
Blind Children's Center
4120 Marathon Street
Los Angeles, CA 90029-3584
International Foundation for Optic Nerve Disease (IFOND)
PO Box 777
Cornwall, NY 12518
MD Support - The Eyes of the Macular Degeneration Community
3600 Blue Ridge Blvd
Grandview, MO 64030
Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
14 Pembroke Street
Medford, MA 02155
National Ophthalmic Genotyping and Phenotyping (eyeGENE®)
National Institutes of Health/National Eye Institute
10 Center Drive, Room 10N226
Bethesda, MD 20892-1860
This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to www.rarediseases.org 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. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.
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.
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Last Updated: 1/15/2013
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