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Usher's syndrome: Electrophysiological tests of the visual and auditory systems

✍ Scribed by F. A. Abraham; D. Cohen; H. Sohmer

Publisher: Springer-Verlag
Year: 1977
Tongue: English
Weight: 489 KB
Volume: 44
Category: Article
ISSN: 0012-4486
DOI: 10.1007/bf00230092

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✦ Synopsis

The symptoms of Usher's syndrome - congenital hearing impairment and tapetoretinal dystrophy - are difficult to detect in young children. The electroretinogram (ERG), visual evoked potential (VEP), auditory nerve and brain-stem responses as well as the cochlear microphonic potentials were used to evaluate the defects of the visual and auditory systems in 20 patients, 3-45 years of age. This study demonstrates the usefulness, reliability and convenience of the electrophysiological tests for early diagnosis and functional evaluation of Usher's syndrome.

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