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Proceedings Paper

Temporal accommodation response measured by photorefractive accommodation measurement device
Author(s): Byoungsub Song; Thibault Leportier; Min-Chul Park
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Paper Abstract

Although accommodation response plays an important role in the human vision system for perception of distance, some three-dimensional (3D) displays offer depth stimuli regardless of the accommodation response. The consequence is that most observers watching 3D displays have complained about visual fatigue. The measurement of the accommodation response is therefore necessary to develop human-friendly 3D displays. However, only few studies about accommodation measurement have been reported. Most of the investigations have been focused on the measurement and analysis of monocular accommodation responses only because the accommodation response works individually in each eye. Moreover, a main eye perceives dominantly the object distance. However, the binocular accommodation response should be examined because both eyes are used to watch the 3D display in natural conditions. The ophthalmic instrument that we developed enabled to measure changes in the accommodation response of the two eyes simultaneously. Two cameras acquired separately the infrared images reflected from each eyes after the reflected beams passed through a cylindrical lens. The changes in the accommodation response could then be estimated from the changes in the astigmatism ratio of the infrared images that were acquired in real time. In this paper, we compared the accommodation responses of main eye between the monocular and the binocular conditions. The two eyes were measured one by one, with only one eye opened, during measurement for monocular condition. Then the two eyes were examined simultaneously for binocular condition. The results showed similar tendencies for main eye accommodation response in both cases.

Paper Details

Date Published: 16 February 2017
PDF: 6 pages
Proc. SPIE 10126, Advances in Display Technologies VII, 1012609 (16 February 2017); doi: 10.1117/12.2253466
Show Author Affiliations
Byoungsub Song, Korea Institute of Science and Technology (Korea, Republic of)
Thibault Leportier, Korea Institute of Science and Technology (Korea, Republic of)
Korea Univ. of Science and Technology (Korea, Republic of)
Min-Chul Park, Korea Institute of Science and Technology (Korea, Republic of)
Korea Univ. of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 10126:
Advances in Display Technologies VII
Liang-Chy Chien; Tae-Hoon Yoon; Sin-Doo Lee, Editor(s)

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