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Objective measurement of visual acuity using electronystagmography Rokuro Makabe 1 1Department of Ophthalmology, University of Frankfurt/Main pp.1221-1225
Published Date 1980/8/15
DOI https://doi.org/10.11477/mf.1410208180
  • Abstract
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 An egipment for the objective assessment of visualacuity was constructed out of clinical necessity. A slide projector was mounted on a standard electronystagmograph of Jung in order to project a light spot (fixation point) in the middle of the screen. Keeping the spot size constant at 11 minutes, the spot intensity was increased until the evoked horizontal optokinetic nystagmus was inhibited.

 Ths test was performed on 30 eyes of normal subjects with the visual acuity decreased artificially in 17 steps by placing neutral density filters.


Copyright © 1980, 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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