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A survey of the cause of severe visual impairment Takashi Ohshima 1 , Hideyo Nakamura 1 , Syuji Maeda 1 , Shoko Satoh 1 , Shuichi Matsuyama 1 1Dept of Ophthalmol, Hirosaki Univ Sch of Med pp.1819-1824
Published Date 1989/11/15
DOI https://doi.org/10.11477/mf.1410211046
  • Abstract
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We surveyed the incidence and causes of severe visual impairment among patients seen in our Department in 1965-66 (group 1) and 1982-86 (group 2). Severe visual impairment was defined as visual acuity less than 0.1 with best correction involving at least one eye. There were 506 cases in group 1 from a total of 5,738 patients and 1,640 cases in group 2 from a total of 17,635. Ocularinjury was the leading cause of visual impairment at 14.0% in group 1. Diabetic retinopathy ranked as 15th at 1.8% in group 1 and as the leading cause at 14.7% in group 2. Visual impairment was caused by trachoma infection in 7.2% in group 1 and 1.3% in group 2. Diabetic retinopathy was also the leading cause in very severely impaired vision with visual acuity less than 0.01 in the better eye at 23.1% during 1982-86.


Copyright © 1989, 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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