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On the Center-Off-VER Minoru Yokoyama 1 , Yoshihiko Yonekura 1 1Department of Ophthalmology, Mie Prefectural University Medical School pp.873-877
Published Date 1970/6/15
DOI https://doi.org/10.11477/mf.1410204330
  • Abstract
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Terminology of Center-Off-VER is tentatively used here for the evoked cortical response by illumination through a diffusion screen which has a small central shading disc, as shown in Fig. 1. In normal subjects, Wave-Ia of the VER is characteristically diminished in its amplitude when the central shading effect appears on the response (Fig. 2, 3) although following waves show little changes. A similar change in Wave-Ia is also seen in the ordinary VERs which are evoked by illumination of the eye having some kinds of lesions and revealing small cent-ral scotomas within 5°, as shown in Fig. 4.


Copyright © 1970, 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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