Deafness in both ears and progressive loss of vision due to retinitis pigmentosa are the indicators of Usher syndrome, a genetic dual deficit disorder. There are three clinical subtypes of Usher syndrome, the most severe of which is Usher type 1 (USH1). This syndrome involves deafness at birth, progressive blindness and balance problems. In 1861, a physician working in Berlin described the clinical features of Usher syndrome in Jewish individuals. Now, 140 years later, there is an opportunity to offer help to those individuals who inherit this syndrome as reported in the April 24, 2003 New England Journal of Medicine.
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National Institute on Deafness and Other Communication Disorders (NIDCD)
Marin P. Allen, Ph.D.
Message posted by: Rashmi Nemade
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