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A statistic study on keratoconus Kiyoo Nakayasu 1 , Yuichi Chuma 1 , Minoru Tanaka 1 , Atsushi Kanai 1 , Motoichi Itoi 2 1Department of Ophthalmology, Juntendo University 2Department of Ophthalmology, Kyoto Prefectural University of Medicine pp.807-813
Published Date 1981/5/15
DOI https://doi.org/10.11477/mf.1410208350
  • Abstract
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 We made a survey on clinical features of keratoconus by means of multiquestionnaire method on 591 patients (1018 affected eyes) supplemented by analysis of recorded clinical data. There was a striking preponderance of males over females at the rate of 420 males (71.1%) against 171 females (28.9%), the male/female ratio being 2.46:1. The average age of onset of initial clinical signs was 14 years. Penetrating keratoplasty had been performed in 169 out of the 1018 eyes, at an average age of 23 years. Rupture of Descemet's membrane occurred in 85 eyes (8.3%).


Copyright © 1981, 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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