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Japanese

Studies on the "shape of cornea" Discussion on the "photo keratoscopy" and the normal values of positional radius of cornea. Sakiko Nishi 1 1Department of ophthalmology School of Medicine Juntendo University pp.1600-1635
Published Date 1960/11/15
DOI https://doi.org/10.11477/mf.1410207066
  • Abstract
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By using the photokeratoscopy the author measured the radius of the various parts of corneas in 50 cases of normal eyes, and tried to express the shape of the cornea by a mathematical formula on the basis of the measurments.

As an experimental apparatus, Placido plate (1), light source (2) and camera with a close-up tube (3) were used (being arranged as follows).

(1) five black concentric circles (each with 1 cm) wich had a common center and radial lines (each angular width 45°) were drown on an opal circular glass (23 cm in diameter) which had a circular hole in it's center.


Copyright © 1960, 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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