Usher syndrome is characterized by bilateral sensorineural hearing loss with retinitis pigmentosa and has an autosomal recessive mode of inheritance. Usher syndrome has been decided into two major clinical types, type 1 and 2. The existence of the third type, which is distinguished from type 1 and 2 by the progressive nature of the hearing loss, has been suggested. A 20-year old man presented with progressive sensorineural hearing loss. After 6 years, he has been suffering from retinis pigmentosa. According to the combination of visual and hearing disorders, he was diagnosed as usher syndrome type 3.
|Number of pages||4|
|Journal||Otolaryngology - Head and Neck Surgery (Tokyo)|
|Publication status||Published - 1996 Jan 1|
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