Usher Syndrome

Usher Syndrome: Introduction

Usher Syndrome: Usher syndrome is an inherited condition that causes 1) a serious hearing loss that is usually present at birth or shortly thereafter and 2) ... more about Usher Syndrome.

Usher Syndrome: A rare inherited disorder characterized by sensorineural deafness and progressive vision loss. More detailed information about the symptoms, causes, and treatments of Usher Syndrome is available below.

Symptoms of Usher Syndrome

• Hearing impairment
• Retinitis pigmentosa - this leads to symptoms such as:
  • Night-blindness
  • Peripheral vision loss
  • Progressive retinal degeneration
• more symptoms...»

See full list of 17 symptoms of Usher Syndrome

Home Diagnostic Testing

Home medical testing related to Usher Syndrome:

• Ear Infections: Home Testing:
  • Home Ear Infection Testing
  • Home Ear Tests
  • Home Hearing Testing
• Vision & Eye Health: Home Testing:
  • Home Eye Tests
  • Home Vision Tests
• more tests...»

Usher Syndrome: Complications

Review possible medical complications related to Usher Syndrome:

• Deafness
• Blindness
• Retinitis pigmentosa
• more complications...»

Medical Textbooks Online about Usher Syndrome

Book excerpts: Copyright © 2008 Lippincott Williams & Wilkins. All rights reserved.

Less Common Symptoms of Usher Syndrome

• Mental retardation
• Cataracts
• more symptoms...»

Read more about symptoms of Usher Syndrome

Diagnostic Tests for Usher Syndrome

• Hearing tests
• Electronystagmography (ENG) - for balance
• Retinal examination
• Electroretinography (ERG) - for retinitis pigmentosa
• more tests...»

Read more about tests for Usher Syndrome

Wrongly Diagnosed with Usher Syndrome?

• Misdiagnosis of Usher Syndrome
• Failure to diagnose Usher Syndrome
• Undiagnosed: Usher Syndrome

Usher Syndrome: Marketplace Products, Discounts & Offers

Products, offers and promotion categories available for Usher Syndrome:

• Vision & Eye Care
• more product offers...»

Usher Syndrome: Undiagnosed Conditions

Commonly undiagnosed diseases in related medical categories:

• Vision & Eye: serious diseases often undiagnosed:
  • Glaucoma -- Undiagnosed
  • Age-Related Macular Degeneration -- Undiagnosed
  • Cataract -- Undiagnosed
  • Diabetic Retinopathy -- Undiagnosed
  • more ...»
• more undiagnosed conditions...»

Usher Syndrome: Research Doctors & Specialists

Research related physicians and medical specialists:

• Ear, Nose & Throat Specialists:
  • Otolaryngology (Ear, Nose & Throat)
  • Pediatric Otolaryngology (Child Ear, Nose & Throat Specialist)
  • Otology / Neurotology (Ear/Hearing Specialists)
  • Plastic Surgery within the Head & Neck
• Eye Health Specialists (Ophthalmology):
  • Ophthalmology (Eye Specialist)
• more specialists...»

Other doctor, physician and specialist research services:

• Rate Your Doctor Online
• Research Your Doctor Online
• Review Patient Surveys About Your Doctor
• Research local specialists including ratings, affiliations, and sanctions.

Causes of Usher Syndrome

Read more about causes of Usher Syndrome.

Videos for Usher Syndrome

Patient Surveys for Usher Syndrome

• Patient Profile Survey
  Take Survey  View Results
• Survey about the symptoms of your Usher Syndrome
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Prognosis for Usher Syndrome

Prognosis for Usher Syndrome: some suffers retain a portion of central vision

More about prognosis of Usher Syndrome

Reseach about Usher Syndrome

Visit our research pages for current research about Usher Syndrome treatments.

Clinical Trials for Usher Syndrome

The US based website ClinicalTrials.gov lists information on both federally and privately supported clinical trials using human volunteers.

Some of the clinical trials listed on ClinicalTrials.gov for Usher Syndrome include:

• Natural History and Genetic Studies of Usher Syndrome - This study is currently recruiting patients (Current: 23 Nov 2006)
• Study of Dietary N-3 Fatty Acids in Patients With Retinitis Pigmentosa and Usher Syndrome - This study has been terminated (Current: 23 Nov 2006)
• A Genetic Analysis of Usher Syndrome in Ashkenazi Jews - This study has been completed (Current: 23 Nov 2006)
• S Tudy of Usher Syndromes, Type 1 and Type 2 - This study has been completed (Current: 23 Nov 2006)
• Molecular Genetics of Retinal Degenerations - This study is currently recruiting patients (Current: 23 Nov 2006)
• more trials...»

Read more about Clinical Trials for Usher Syndrome

Statistics for Usher Syndrome

• Medical statistics for Usher Syndrome
• Prevalence and incidence statistics for Usher Syndrome
• Death and Mortality statistics for Usher Syndrome
• Society statistics for Usher Syndrome

Usher Syndrome: Broader Related Topics

• Ear conditions
• Eye conditions
• Genetic Disease
• Autosomal Genetic Diseases
• Autosomal Recessive Genetic Diseases
• Recessive Genetic Diseases
• more types...»

Types of Usher Syndrome

Types of Usher Syndrome

• Usher Syndrome Type 1 - deafness, balance problems, RP in early adolescence
• Usher Syndrome Type 2 - moderate hearing loss, no balance problems, RP later in adolescence
• Usher Syndrome Type 3 - normal hearing at birth, progressive hearing loss and RP
• more types...»

Read more about Types of Usher Syndrome

Stories from Users Related to Usher Syndrome

• Retinitis Pigmentosa and genetics
• Please Help-i am confused over Hereditary Deafness
• Possible Usher Syndrome - Loss of peripheal vision
• whats a safe ED med for a man with retinitis pigmentosa
• Hereditary deafness?

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User Interactive Forums

Read about other experiences, ask a question about Usher Syndrome, or answer someone else's question, on our message boards:

• I can not get a diagnosis. Please help.
• Tell us your medical story.
• Share your misdiagnosis story.
• What is the best treatment for this?
• See all the forums.

Article Excerpts about Usher Syndrome

Usher syndrome is an inherited condition that causes 1) a serious hearing loss that is usually present at birth or shortly thereafter and 2) progressive vision loss caused by retinitis pigmentosa (RP). RP is a group of inherited diseases that cause night-blindness and peripheral (side) vision loss through the progressive degeneration of the retina, the light-sensitive tissue at the back of the eye that is crucial for vision. (Source: excerpt from Usher Syndrome Resource Guide: NEI)

Definitions of Usher Syndrome:

A hereditary disorder characterized by deaf-mutism, retinitis pigmentosa, and occasional mental retardation. Early cases were reported mainly in Jews in Germany but later observations came from Finland, Norway, France, England, Israel, Louisiana. (the Acadian type affecting 4.4 per 100,000), and other parts. Several types are recognized: Type I. Synonyms: Usher syndrome type I (US1, USH1) Usher syndrome type IA (US1A, USH1A) Usher syndrome, French type Type IB Synonyms: Usher syndrome type IB (US1B, USH1B) Usher syndrome, non-Acadian variety Type IC Synonyms: Usher syndrome type IC (US1C, USH1C) Usher syndrome, Acadian variety Profound congenital deafness with onset of retinitis pigmentosa by the age of 10 years. Type II Synonyms: Usher syndrome type II (US2, USH2) Type IIB Synonyms: Usher syndrome IIB (US2B, USH2B) Type III Synonyms: Usher syndrome type III (US3, USH3) Retinitis pigmentosa first noted at puberty with progressive hearing loss. Schizophrenia reported in some cases. Type IV Synonyms: Usher syndrome type IV (US4, USH4) Retinitis pigmentosa and deafness possibly transmitted as an X-linked trait. - (Source - Diseases Database)

Usher Syndrome is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that Usher Syndrome, or a subtype of Usher Syndrome, affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)

Ophanet, a consortium of European partners, currently defines a condition rare when it affects 1 person per 2,000. They list Usher Syndrome as a "rare disease".
Source - Orphanet