Usher Syndrome Type 1: A rare inherited disorder characterized by sensorineural deafness at birth or soon after and progressive vision loss which starts during the first decade of life and blindness usually occurs between 20-35 years of age. Symptoms are generally more severe than in type 2 with deafness occurring at birth or during first year and vision loss starting during childhood. More detailed information about the symptoms, causes, and treatments of Usher Syndrome Type 1 is available below.
See full list of 15 symptoms of Usher Syndrome Type 1
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Usher Syndrome Type 1 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 Type 1, or a subtype of Usher Syndrome Type 1,
affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)
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