usher's syndrome

usher's syndrome - What is Usher Syndrome? Usher Syndrome...

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What is Usher Syndrome? Usher Syndrome is a disorder that involves hearing and vision problems. The major symptoms of this disorder are hearing impairment and retinitis pigmentosa, which causes the worsening of visions over a period of time. Usher Syndrome is truly believed to be passed from parents to their children. Three Types of Usher Syndrome: 1. Usher Syndrome type 1 (USH1): profound deafness (hearing aids provide little benefit in adulthood) and severe balance problems at birth; vision problems by the age of ten leading to blindness 2. Usher Syndrome type 2 (USH2): moderate to severe hearing impairment (hearing aids provide more benefit in adulthood) and normal balance at birth; vision problems arise after the teenage years and are characterized by blind spots leading to blindness 3. Usher Syndrome type 3 (USH3): normal hearing (noticeable hearing problems by teenage years and deafness by mid to late adulthood) and near normal to normal balance at birth; blind spots appear by late teens and eventually lead to blindness
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This essay was uploaded on 04/07/2008 for the course BIOSCI 0060 taught by Professor Ruthermund during the Spring '08 term at Pittsburgh.

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usher's syndrome - What is Usher Syndrome? Usher Syndrome...

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