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Tonography and ocular rigidity Shoichi Komoto 1 , Takako Yokoyama 1 1Dept. of Ophthalmology Tokyo Police Hospital pp.509-514
Published Date 1963/4/15
DOI https://doi.org/10.11477/mf.1410202703
  • Abstract
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The authors present a table and two no-mograms for calcaulating a coefficient of facility of outflow from the tonographic data with different ocular rigidity.

Grant's tonographic equation isC=1/Klog Pt1/Pt2+V2-V1/4(Pt1+Pt2/2-1.25-P0

The parts of the equation,log Pt1/Pt2,V2- V1 and Pt1+Pt2 /2-1.25 are presented in table la, b, c and are 6.3, 4.1 and 27.9 respectively when the initial reading with the 5.5gmwas 5.0 and the four minute reading was 7.0.

From figure 1, K=0.0137

1/Klog Pt1/Pt2=4.6

ΔV=4.6+4.1=8.7

P0=21

Pt1/Pt2/2-1.25-21=6.9

From figure 2 C=0.315


Copyright © 1963, 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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