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Japanese

New Apparatus for Grating Visual Acuity Using Moire's Patterns. Part III Sadayoshi Kamiya 1 , Tokihiko Yamamoto 2 1Nagoyashi, Nara Medical College 2Nitten Medical Systemic Research Institute pp.1335-1339
Published Date 1974/12/15
DOI https://doi.org/10.11477/mf.1410205217
  • Abstract
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A new apparatus for grating visual acuity using modified Moire pattern is descrived. It enables the assessment of three modalities of visual acuity, i.e. screen rotation angle, Landolt acuity and spacial frequency.

Basic and clinical studies were conducted with the apparatus to define the optimal conditions for the examination. Following factors were evaluated as they seemed to influence or to be correlated with the grating visual acuity: 1) visual angle (area of test chart), 2) brightness of the test chart, 3) surrounding color bright-ness of the test chart, 4) color of the test chart and 5) Landolt acuity.


Copyright © 1974, 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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