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Proceedings Paper

Stereoscopic 3D display with dynamic optical correction for recovering from asthenopia
Author(s): Takashi Shibata; Takashi Kawai; Masaki Otsuki; Nobuyuki Miyake; Yoshihiro Yoshihara; Tsuneto Iwasaki
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Paper Abstract

The purpose of this study was to consider a practical application of a newly developed stereoscopic 3-D display that solves the problem of discrepancy between accommodation and convergence. The display uses dynamic optical correction to reduce the discrepancy, and can present images as if they are actually remote objects. The authors thought the display may assist in recovery from asthenopia, which is often caused when the eyes focus on a nearby object for a long time, such as in VDT (Visual Display Terminal) work. In general, recovery from asthenopia, and especially accommodative asthenopia, is achieved by focusing on distant objects. In order to verify this hypothesis, the authors performed visual acuity tests using Landolt rings before and after presenting stereoscopic 3-D images, and evaluated the degree of recovery from asthenopia. The experiment led to three main conclusions: (1) Visual acuity rose after viewing stereoscopic 3-D images on the developed display. (2) Recovery from asthenopia was particularly effective for the dominant eye in comparison with the other eye. (3) Interviews with the subjects indicated that the Landolt rings were particularly clear after viewing the stereoscopic 3-D images.

Paper Details

Date Published: 22 March 2005
PDF: 9 pages
Proc. SPIE 5664, Stereoscopic Displays and Virtual Reality Systems XII, (22 March 2005); doi: 10.1117/12.587396
Show Author Affiliations
Takashi Shibata, Waseda Univ. (Japan)
Takashi Kawai, Waseda Univ. (Japan)
Masaki Otsuki, Nikon Corp. (Japan)
Nobuyuki Miyake, Nikon Corp. (Japan)
Yoshihiro Yoshihara, Arisawa Manufacturing Co., Ltd. (Japan)
Tsuneto Iwasaki, Univ. of Occupational and Environmental Health (Japan)

Published in SPIE Proceedings Vol. 5664:
Stereoscopic Displays and Virtual Reality Systems XII
Andrew J. Woods; Mark T. Bolas; John O. Merritt; Ian E. McDowall, Editor(s)

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