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Japanese

Magnification in Fundus Photograph Hiroshi Yaoeda 1 , Masakichi Mikuni 1 1Department of Ophthalmology, Niigata University School of Medicine pp.95-100
Published Date 1971/1/15
DOI https://doi.org/10.11477/mf.1410204440
  • Abstract
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The magnification of fundus photograph can be determined following formula. The total re-fractive power of the eye was assumed to be constant 60D in emmetronia.

M=60f''(60+DE/60+DE+60dDE

M : magnification

f'' : focal length of the fundus camera which is constant for each apparatus.

DE : ocular ametropia in diopter ; measured in each case

d : distance between the anterior focal point of the eye and the anterior focal point of the camera ; definite to the camera

The magnification of the photograph taken with Olympus fundus camera GRC was calcu-lated by the above formula and was expressed in a tabular form.


Copyright © 1971, 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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