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Changes in Visual Function After Viewing an Anaglyph 3D Image  

Lee, Wook-Jin (Department of Optometry and Vision Science, Kyungwoon University)
Kwak, Ho-Won (Department of Optometry and Vision Science, Kyungwoon University)
Son, Jeong-Sik (Department of Optometry and Vision Science, Kyungwoon University)
Kim, In-Su (Department of Material and Energy Engineering, Kyungwoon University)
Yu, Dong-Sik (Department of Optometry and Vision Science, Kyungwoon University)
Publication Information
Journal of Korean Ophthalmic Optics Society / v.16, no.2, 2011 , pp. 179-186 More about this Journal
Abstract
Purpose: This study aimed to compare and assess changes of visual functions in viewing an anaglyph 3D image. Methods: Visual functions were examined before and after viewing a 2D image and an anaglyph 3D image with red-green glasses on seventy college students (mean age = 22.29${\pm}$2.19 years). Visual function tests were carried out for von Graefe phoria test, accommodative amplitude test by (-) lens addition, negative relative accommodation (NRA) and positive relative accommodation (PRA) test, negative relative convergence (NRC) and positive relative convergence (PRC) test, accommodative facility, and vergence facility test. Results: Assessment of the visual functions indicated that near exophoria and accommodative amplitude were reduced after viewing a 3D image, and although there were small changes in relation to these findings, NRC and PRC showed tendencies to increase and decrease at near, respectively. There were no significant changes with NRA and PRA, and accommodative and vergence facility were shown to have improved. Conclusions: Changes of visual functions were more in the 3D image than the 2D image, especially at near than distance. Particularly, the improvement of accommodative and vergence facility could be related to an effect of subsequent accommodation and vergence shift to have stereopsis in the 3D image. These results indicate that an anaglyph 3D image may, to some extent, be the effect of vision training such as anaglyphs.
Keywords
2D; 3D; Image; Anaglyph; Visual function;
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