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Research on a New Vision Test Chart Measuring Visual and Spatial Sense of Moire Fringes  

Woo, Hyun Kyung (Graduate School of Public Health, Yonsei University)
Lee, Seongjae (Department of Visual Optics, Kyungdong University)
Jeong, Youn Hong (Department of Visual Optics, Kyungdong University)
Publication Information
Journal of Korean Ophthalmic Optics Society / v.15, no.3, 2010 , pp. 241-245 More about this Journal
Abstract
Purpose: In this work we suggested a grating chart of vision test which could be used to measure the sense of distance and motion of object. Methods: A couple of gratings with periodic structure were fabricated. Through a lens the grating images showing geometrical shapes were projected on a vision test chart in order to form a new grating chart of vision test. In rotating and translating the gratings the examinee perceived the variation of position of gratings by the variation of the sense of distance and motion. Results: The results of the sense of distance and motion measured in rotating and translating the gratings showed the average errors of ~2.98% and ~1.73% at $\theta=15^{\circ}$ respectively compared to calculated values. Conclusions: The grating chart of vision test suggested in this work can be used as a new test chart that lets an examinee perceive a sense of distance and motion of object.
Keywords
Sense of space; Sense of distance; Vision test chart; Rotational displacement; Translational displacement; Sinusoidal gratings;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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