J Korean Ophthalmol Soc > Volume 51(12); 2010 > Article
Journal of the Korean Ophthalmological Society 2010;51(12):1620-1624.
DOI: https://doi.org/10.3341/jkos.2010.51.12.1620    Published online December 15, 2010.
Changes of Deviation After the Patch and +3.00 Diopter Spherical Lens Test in Basic Intermittent Exotropia.
Hyun Chul Jin, Ji Hyun Park, Se Youp Lee
1Department of Ophthalmology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea. lsy3379@dsmc.or.kr
2Department of Ophthalmology, Haeundae Paik Hospital, Inje University School of Medicine, Busan, Korea.
기본형 간헐외사시에서 눈가림 및 +3.00디옵터 구면렌즈검사 후 사시각 변화
Department of Ophthalmology, Dongsan Medical Center1, Keimyung University School of Medicine, Daegu, Korea, Department of Ophthalmology, Haeundae Paik Hospital2, Inje University School of Medicine, Busan, Korea
To assess the change of deviation angle after the patch test and +3.00 diopter (D) spherical lens test in basic intermittent exotropia. METHODS: The present study included 57 patients diagnosed with basic intermittent exotropia. The deviation angles at near and far before and after monocular occlusion of 40 minutes or more were measured. Afterward, change of deviation was also measured by placing +3.00 D spherical lenses at near. RESULTS: Results from the study revealed pre-occlusion mean deviation angles of 23.1 +/- 7.41 prism diopters (PD) at near, and 23.9 +/- 6.56 PD at far. After the patch test, the mean deviation angles were increased to 28.3 +/- 6.50 PD (p < 0.0001) at near, and 25.5 +/- 6.40 PD (p < 0.0001) at far. After the +3.00 D spherical lens test, the angle was increased to 31.5 +/- 7.53 PD (p < 0.0001) at near. Using the gradient method, the average accommodation convergence - accommodation ratio was 1.4 +/- 1.19 PD/D. CONCLUSIONS: Both the patch test and +3.00 D spherical lens test significantly increased the deviation angles at near and far, they helped to find the maximum deviation angle in patients with basic intermittent exotropia.
Key Words: Basic intermittent exotropia;Monocular occlusion;+3.00 diopter spherical lens test

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