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Angle of ocular rotation during viewing a visual display terminal Toru Suzuki 1 , Shinobu Akiya 1 , Susumu Saito 2 1Dept of Ophthalmol, Univ of Occupational and Environmental Health 2National Inst of Industrial Health pp.1519-1522
Published Date 1993/8/15
DOI https://doi.org/10.11477/mf.1410901809
  • Abstract
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We studied the vertical eye position of 12 work station workers engaged in visual display terminal (VDT). The ages ranged from 20 to 45 years. The height of VDT was set so that the examinee could most comfortably look at the cathode ray tube (CRT). There was a significant head tilt while viewing the center of CRT dependent of the heightof the latter. Subjectively, the examinees felt most at ease with the visual axis turned downward by 23 degrees from the Reid's line. Near fixation with the eye turned downwards also appeared to be the rational posture to facilitate binocular vision. We advocate setting the CRT low enough so that VDT workers complaining visual fatigue will be more at ease.


Copyright © 1993, 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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