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Dimension of Optic Disc (Part 1) Kotaro Abe 1 1Department of Ophthamology, School of Medicine, Juntendo University pp.1227-1235
Published Date 1965/10/15
DOI https://doi.org/10.11477/mf.1410203278
  • Abstract
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A calculational method was presented to determine true dimensions of optic disc from magnification of fundus-photograph, being computed from values obtained by photopha-cometry, ultra-sonic echogram and optical components of fundus camera.

Optic disc showed marked individual varia-tion in it's dimensions. Mean horizontal dia-meter were 1.741mm, (σ0.199mm) in male and 1.760mm (σ0.152mm) in female.

The use of the disc-diameter as a scale involves larger errors than the use the ma-gnification itself. Heritability of the size of optic disc was 0.92.


Copyright © 1965, 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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