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Usher's Syndrome: Electrophysiological Tests of the Visual and Auditory Systems

Overview
Journal Doc Ophthalmol
Specialty Ophthalmology
Date 1977 Dec 30
PMID 598276
Citations 2
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Abstract

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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