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27 January 2006 Examination of asthenopia recovery using stereoscopic 3D display with dynamic optical correction
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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.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Takashi Shibata, Takashi Kawai, Keiji Ohta, JaeLin Lee, Masaki Otsuki, Nobuyuki Miyake, Yoshihiro Yoshihara, and Tsuneto Iwasaki "Examination of asthenopia recovery using stereoscopic 3D display with dynamic optical correction", Proc. SPIE 6055, Stereoscopic Displays and Virtual Reality Systems XIII, 60550E (27 January 2006);

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