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KMID : 1159320120140040381
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Korean Journal of Vision Science
2012 Volume.14 No. 4 p.381 ~ p.390
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Assessment of Stereopsis, phorias and self-reported symptoms in Viewing Anaglyph 3D Image
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Huh Young-Su
Yu Sung-Whan
Kim Sol-Bi
Park Chan-Young
Kim Hyo-Jin
Lee Eun-Hee
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Abstract
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Purpose: This study was performed to assess stereopsis, phorias and self-reported symptoms in before and after viewing Anaglyph 3D image. Methods: Study subjects were 56 university students and classified to two groups after stereopsis test; group A - stable to stereopsis, group B - unstable to stereopsis. We assessed the subjects` stereopsis, deviation before and after viewing Anaglyph type 3D image using red-green glasses for 30 minutes. Clinical tests were performed for phorias by von Graefe technique and for stereoacuity using the Titmus fly test. Result: The astigmatism of unstable group(Mean±SD: -1.05±0.73) was higher than that of stable group(Mean±SD: 0.52±0.40)(p < 0.005). The rate of exophoria was significantly higher in unstable group64%) than stable group(36%)(p < 0.01). The ability of stereopsis in viewing Anaglyph 3D image was significantly developed after viewing than before viewing with degrading 103.2 from 113.6 seconds of arc in unstable group(p < 0.05). The intensities of ocular symptoms and non-ocular symptoms was not significantly difference between both group with similar symptoms. Conclusion: Based on the result of this study, we found that the difficult people in ability of stereopsis have higher astigmatism and exophoria after viewing Anaglyph 3D image.
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KEYWORD
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Anaglyph 3D image, stereopsis, exophoria, ocular symptoms, non-ocular sympotoms
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