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Proceedings Paper

Examination of asthenopia recovery using stereoscopic 3D display with dynamic optical correction
Author(s): Takashi Shibata; Takashi Kawai; Keiji Ohta; JaeLin Lee; Masaki Otsuki; Nobuyuki Miyake; Yoshihiro Yoshihara; Tsuneto Iwasaki
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Paper Abstract

A common cause of asthenopia is viewing objects from a short distance, as is the case when working at a VDT (Visual Display Terminal). In general, recovery from asthenopia, especially accommodative asthenopia, is aided by looking into the distance. The authors have developed a stereoscopic 3-D display with dynamic optical correction that may reduce asthenopia. The display does this by reducing the discrepancy between accommodation and convergence, thereby presenting images as if they were actually in the distance. The results of visual acuity tests given before and after presenting stereoscopic 3-D images with this display show a tendency towards less asthenopia. In this study, the authors developed a refraction feedback function that makes the viewer's distance vision more effective when viewing stereoscopic 3-D images on the this display. Using this function, refraction is fed back during viewing and the viewer gradually acquires distance vision. The results of the study suggest that stereoscopic 3-D images are more effective than 2-D images for recovery from asthenopia.

Paper Details

Date Published: 27 January 2006
PDF: 8 pages
Proc. SPIE 6055, Stereoscopic Displays and Virtual Reality Systems XIII, 60550E (27 January 2006); doi: 10.1117/12.645674
Show Author Affiliations
Takashi Shibata, Waseda Univ. (Japan)
Takashi Kawai, Waseda Univ. (Japan)
Keiji Ohta, Waseda Univ. (Japan)
JaeLin Lee, 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. 6055:
Stereoscopic Displays and Virtual Reality Systems XIII
Andrew J. Woods; Mark T. Bolas; Ian E. McDowall; Neil A. Dodgson; John O. Merritt, Editor(s)

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