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목적 : The purpose of this study is to investigate the efficacy of evaluating 3D asthenopia and 3D perception as a screening tool for visual abnormalities in children.
방법 : Normal subjects and patients, aged between 6-12 years, with abnormal binocular vision including strabismus, amblyopia, and anisometropia were recruited. Best-corrected visual acuity, presenting visual acuity, refractive error, angle of strabismus, and stereopsis were measured. After watching a 3D TV for 30 minutes, a survey on the degree of 3D perception and 3D asthenopia was conducted. A receiver operation characteristic (ROC) curve analysis was conducted to evaluate the efficacy of the survey to detect abnormal binocular vision and low presenting visual acuity.
결과 : One hundred and two subjects were enrolled in this study. Fifty-seven had abnormal binocular vision and 45 were normal. Twenty-four subjects had presenting visual acuity of 20/40 or lower. ROC curve analysis revealed that the survey did not detect strabismus, anisometropia or amblyopia effectively. However, for detection of the presenting visual acuity of 20/40 or lower, the total score of the survey yielded an area under the ROC curve of 0.637 (P=0.043). The sensitivity was 87.5%, and the specificity was 53.8% with a cut-off at 0.50.
결론 : The degree of 3D asthenopia and 3D perception during watching a 3D TV was not as effective for screening out the presence of abnormal binocular vision. However, decreased visual acuity requiring proper correction could be better screened by the degree of 3D asthenopia and 3D perception.
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