Stereoscopic 3-D display with dynamic optical correction for recovering from asthenopia

Takashi Shibata*, Takashi Kawai, Masaki Otsuki, Nobuyuki Miyake, Yoshihiro Yoshihara, Tsuneto Iwasaki

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)


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.

Original languageEnglish
Article number01
Pages (from-to)1-9
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2005 Jul 20
EventProceedings of SPIE-IS and T Electronic Imaging - Stereoscopic Displays and Virtual Reality Systems XII - San Jose, CA, United States
Duration: 2005 Jan 172005 Jan 20


  • Accommodation
  • Asthenopia recovery
  • Optical correction
  • Stereoscopic 3-D display
  • Visual acuity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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