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Long-term follow-up of visual evoked potential in infants with cerebral visual dysfunction Yoshiki Masaki 1 , Yukari Nishioka 1 , Akio Tabuchi 1 , Jun Tsutsui 1 , Eiko Matsuda 2 2Dept of Ophthalmol, Kawasaki Med Sch pp.1047-1050
Published Date 1990/7/15
DOI https://doi.org/10.11477/mf.1410900260
  • Abstract
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We evaluated the flash visual evoked potentials (FVEP) in 12 infants with suspected cortical blind-ness. All the cases failed to manifest following eye movement. The ages ranged from 3 months to 30 months at the first FVEP session. FVEP examina-tion was repeated 2 to 7 times at an interval of 1 month or more. FVEP was elicited with a xenon flash with 1 J intensity and 1 Hz frequency, and was recorded with 12 electrodes after the international10-20 method.

At the first recordings. occipital P100 component was present in 9 cases, 75%. VEP findings improved in 8 of the 9 cases from the second examination on. Clinical behavior improved in 7 of these 8 cases.

In the remaining 3 cases, VEPs became recorda-ble from the second examination on, associated with improved visual behavior.

VEP was thus useful in assessing the visual func-tion in infants with cortical blindness. Repeated VEP examination in advocated to evaluate the course of visual development.


Copyright © 1990, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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