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22 March 2005 Stereoscopic 3D display with dynamic optical correction for recovering from asthenopia
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Proceedings Volume 5664, Stereoscopic Displays and Virtual Reality Systems XII; (2005)
Event: Electronic Imaging 2005, 2005, San Jose, California, United States
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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Takashi Shibata, Takashi Kawai, Masaki Otsuki, Nobuyuki Miyake, Yoshihiro Yoshihara, and Tsuneto Iwasaki "Stereoscopic 3D display with dynamic optical correction for recovering from asthenopia", Proc. SPIE 5664, Stereoscopic Displays and Virtual Reality Systems XII, (22 March 2005);

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