| Qualitative Assessment of Binocular and Monocular Visual Function in Successfully Treated Amblyopes. |
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J K Chung, Kyung Seek Choi, Song Hee Park |
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Department of Ophthalmology, Soonchunhyang University College of Medicine, Seoul, Korea. scheye@schuh.ac.kr |
| 성공적인 약시치료 후 양안, 단안 시기능의 질적 평가 |
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정진권,최경식,박성희 |
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Department of Ophthalmology, Soonchunhyang University College of Medicine, Seoul, Korea |
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Correspondence:
JK Chung, M.D. |
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| Abstract |
PURPOSE
This study was undertaken to investigate the binocular and monocular visual function in successfully treated amblyopes. METHODS: Sixty-nine patients who gained normal visual acuity after amblyopia treatment and twenty normal controls were enrolled in this study. Binocular and monocular visual function was assessed with a stereoacuity test and a foveal threshold test respectively. Main outcomes were compared among the groups and factors which affect final visual function were determined. RESULTS: Stereoacuity showed 224.6 seconds of arc in strabismic amblyopia group, 91.8 seconds of arc in anisometropic amblyopia group, 74.3 seconds of arc in visual-deprivation amblyopia group, and 46.5 seconds of arc in control group. The strabismic amblyopia group after successful amblyopia treatment showed a significant decreased stereoacuity (p=0.000) and linear relationship between the depth of amblyopia and stereoacuity (r=0.448, p=0.002). A 1.0-dB depression of the foveal threshold, compared with sound eye, was found in amblyopic eyes of the strabismic and anisometropic amblyopia groups. CONCLUSIONS: An abnormal binocular visual function remains after amblyopia treatment in cases of strabismic amblyopia because of a suppression or insufficient bifoveal fusion during critical period, despite of normal visual acuity development, and there is a shallow foveal depression in amblyopic eyes of patient in the strabismic and anisometropic amblyopia groups. |
| Key Words:
Amblyopia;Foveal threshold;Stereoacuity;Visual function |
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