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- Title
Three-dimensional virtual images modify the waveform of pupillary near response.
- Authors
Yasuo Suzuki
- Abstract
Abstract Purpose  To investigate the effects of the continuous viewing of horizontal disparities on the pupillary near response by using three-dimensional (3-D) displays. Methods  The pupillary diameter and the horizontal eye position of both eyes were measured during the near response in eight healthy young adults. The measurements were made before and after viewing a 3-D movie for 15 or 30 min, or a two-dimensional (2-D) movie for 90 min. The near response was elicited by a real target that moved from the far position (0.5 m) to the near position (0.1 or 0.125 m) in the midsagittal plane at a constant velocity of ± 0.26 diopters (D)/s. The accommodative demand was 6 or 8 D. Results  A delay in the pupillary dilation in the near response was observed immediately after a 30-min viewing of a 3-D movie with an accommodative demand of 8 D (P Conclusions  Continuous viewing of horizontal disparities can induce a delay in the pupillary dilation in the near response. The parameters of the pupillary near response are useful in assessing the effects of 3-D viewing.
- Subjects
PUPILLOMETRY; THREE-dimensional imaging; VISUAL discrimination; VISION testing; EYE examination
- Publication
Japanese Journal of Ophthalmology, 2008, Vol 52, Issue 2, p79
- ISSN
0021-5155
- Publication type
Article