Important
It is possible that the main title of the report Usher Syndrome 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.

Synonyms

• Hereditary Deafness-Retinitis Pigmentosa
• Retinitis Pigmentosa and Congenital Deafness

Disorder Subdivisions

• Usher Type I
• Usher Type II
• Usher Type III
• Usher Type IV

General Discussion

Usher syndrome is a rare inherited disorder primarily characterized by deafness due to an impaired ability of the auditory nerves to transmit sensory input to the brain (sensorineual hearing loss) accompanied by retinitis pigmentosa, a disorder that causes progressive loss of vision. Researchers have identified three types of Usher syndrome and debated the existence of a fourth type. The age at which the disorder appears along with the severity of symptoms distinguishes the different types of Usher syndrome. Usher syndrome is inherited as an autosomal recessive genetic trait. The possible fourth type of Usher syndrome may be inherited as an X-linked genetic trait.

Resources

National Association for Visually Handicapped
22 West 21st Street
New York, NY 10010
USA
Tel: 2128893141
Fax: 2127272931
Email: staff@navh.org
Internet: http://www.navh.org

Foundation Fighting Blindness, Inc.
11435 Cronhill Drive
Owings Mills, MD 21117-2220
Tel: (410)568-0150
Fax: (410)363-2393
Tel: (800)683-5555
TDD: (800)683-5551
Email: info@blindness.org
Internet: http://www.fightblindness.org

Deafness Research Foundation
8201 Greensboro Drive
Third Floor
McLean, VA 22102
United States
Tel: 7036109025
Fax: 7036109005
Tel: 8008295934
Email: drf@drf.org

Retinitis Pigmentosa International
P.O. Box 900
Woodland Hills, CA 91365
Tel: (818)992-0500
Fax: (818)992-3265
Tel: (800)344-4877
Email: info@international.org
Internet: http://www.rpinternational.org

National Association for Parents of Children with Visual Impairments (NAPVI)
P.O. Box 317
Watertown, MA 02472
Tel: (617)972-7441
Fax: (617)972-7444
Tel: (800)562-6265
Email: napvi@perkins.org
Internet: http://www.napvi.org

Alexander Graham Bell Association for the Deaf, Inc.
3417 Volta Place, NW
Washington, D.C. 20007-2778
United States
Tel: 2023375220
Fax: 2023378314
Tel: 8663375220
Email: info@agbell.org
Internet: http://www.agbell.org

National Federation of the Blind
1800 Johnson Street
Baltimore, MD 21230
USA
Tel: 4106599314
Fax: 4106855653
Email: nfb@nfb.org
Internet: http://www.nfb.org

American Council of the Blind, Inc.
1155 15th Street
Suite 1004
Washington, DC 20005
Tel: (202)467-5081
Fax: (202)467-5085
Tel: (800)424-8666
Internet: http://www.acb.org

American Society for Deaf Children
PO Box 3355
Gettysburg, PA 17325
Tel: (800)942-6084
Fax: (717)334-8808
Tel: (800)942-2732
TDD: (717)334-7922
Email: ASDC1@aol.com
Internet: http://www.deafchildren.org

American Foundation for the Blind
11 Penn Plaza
Suite 300
New York, NY 10001
Tel: (212)502-7600
Fax: (212)502-7777
Tel: (800)232-5463
TDD: (212)502-7662
Email: afbinfo@afb.org
Internet: http://www.afb.org

Blind Children's Fund
311 W. Broadway
Suite 1
Mt. Pleasant, MI 48858
Tel: (989)779-9966
Fax: (989)779-0015
Email: bcf@blindchildrensfund.org
Internet: http://www.blindchildrensfund.org

Council of Families with Visual Impairment
1155 15th St. NW
Suite 1004
Washington, DC 20005
Tel: (202)465-5081
Fax: (202)465-5085
Email: info@acb.org
Internet: http://www.acb.org/

NIH/National Eye Institute
Building 31 Rm 6A32
31 Center Dr MSC 2510
Bethesda, MD 20892-2510
United States
Tel: 3014965248
Fax: 3014021065
Email: 2020@nei.nih.gov
Internet: http://www.nei.nih.gov/

NIH/National Institute on Deafness and Other Communication Disorders (Balance)
National Temporal Bone, Hearing
and Balance Pathology Resource Registry
Massachusetts Eye & Ear Infirmary
243 Charles Street
Boston, MA 02114-3096
Fax: (617)573-3838
Tel: (800)822-1327
TDD: (888)561-3277
Email: TBRegistry@meei.harvard.edu
Internet: http://www.tbregistry.org

Blind Children's Center
4120 Marathon Street
Los Angeles, CA 90029-3584
USA
Tel: 3236642153
Fax: 3236653828
Tel: 8002223566
Email: info@blindcntr.org
Internet: http://www.blindcntr.org

Foundation Fighting Blindness (Canada)
60 St. Clair Ave East
Suite 703
Toronto, Ontario, M4T 1N5
Canada
Tel: 416-360-4200
Fax: 416-360-0060
Tel: 800-461-3331
Email: info@ffb.ca
Internet: http://www.ffb.ca

Let Them Hear Foundation
1900 University Ave #101
East Palo Alto, CA 94303
Tel: (650)462-3143
Fax: (650)462-3143
Tel: (877)735-2929
Email: info@letthemhear.org
Internet: http://www.letthemhear.org

American Academy of Audiology
11730 Plaza America
#300
Reston, VA 20190
Tel: (703)790-8466
Fax: (703)790-8631
Tel: (800)222-2336
Email: info@audiology.org
Internet: http://www.audiology.org

Retina International
Ausstellungsstrasse 36
CH-8005
Zürich,
Switzerland
Tel: (0)44 444 10 77
Fax: (0)44 444 10 70
Email: c.fasser@e-link.ch
Internet: http://www.retina-international.org

Perkins School for the Blind
175 North Beacon St.
Watertown, MA 02472
Tel: (617)924-3434
Fax: (617)926-2027
Email: Info@Perkins.org
Internet: http://www.Perkins.org

National Consortium on Deaf-Blindness (NCDB)
The Teaching Research Institute
Western Oregon University
345 N. Monmouth Ave.
Monmouth, OR 97361
Tel: (800)438-9376
Fax: (503)838-8150
Tel: (800)438-9376
TDD: (800)854-7013
Email: info@nationaldb.org
Internet: http://www.nationaldb.org