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Conversion Formula between Crowded and Single Chart Visual Acuities in Schoolchildren Mototsugu Saishin 1 1Department of Ophthalmology, Nara Medical University pp.317-319
Published Date 1972/3/15
DOI https://doi.org/10.11477/mf.1410204743
  • Abstract
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The sampling and the methods for the mea-surement of visual acuity in the present study have been described in the foregoing paper (Acta Soc. Ophth. Jap. 75: 1495-1514, 1971). The cro-wded chart visual acuity is not identical with the single chart visual acuity. Based on statis-tical data, the one is predictable from the other.

When the crowded chart visual acuity is alre-ady known and the single chart visual acuity has to be inferred from it, the latter value te-nds to be higher than the former.


Copyright © 1972, 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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