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Quantitation of visual field area in grade 5 visually handicapped persons. Use of kinetic automated perimeter Junko Kamo 1 , Daisuke Yomota 1 , Yoshinao Fukasawa 2 1Dept of Ophthalmol,Kofu Kyoritsu Hosp 2Dept of Gynecol,Kofu Kyoritsu Hosp pp.441-444
Published Date 2005/4/15
DOI https://doi.org/10.11477/mf.1410100477
  • Abstract
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 The fifth grade of visually disabled is defined as whose visual field area taken by I/4 is less than the half area of the so-called normal. It was used to be judged only by impression. We made a way to calculate the area of visual field. We chose 15 normal persons whose reflex is between emetropia and -3D. We used Humphrey 750 and Octpus101 which can perform kinetic perimetory. We merged both visual field by Adobe Photshop(R) and calculated the area by Lenara1.02(R) and made the ratio against the normal field area. The ratio was 0.58 in 750 group and 0.51 in 101 group. We succeed in calculating the visual field,however,also found out either:the so-called normal field is too wide or I/4 is too dim.


Copyright © 2005, 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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