Examination of asthenopia recovery using stereoscopic 3-D display with dynamic optical correction

Takashi Shibata*, Takashi Kawai, Keiji Ohta, Jae Lin Lee, Masaki Otsuki, Nobuyuki Miyake, Yoshihiro Yoshihara, Tsuneto Iwasaki

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


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.

Original languageEnglish
Title of host publicationStereoscopic Displays and Virtual Reality Systems XIII - Proceedings of SPIE-IS and T Electronic Imaging
Publication statusPublished - 2006 Apr 10
EventStereoscopic Displays and Virtual Reality Systems XIII - San Jose, CA, United States
Duration: 2006 Jan 162006 Jan 19

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceStereoscopic Displays and Virtual Reality Systems XIII
Country/TerritoryUnited States
CitySan Jose, CA


  • 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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