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자료유형
학술저널
저자정보
저널정보
대한안과학회 Korean Journal of Ophthalmology Korean Journal of Ophthalmology 제29권 제6호
발행연도
2015.1
수록면
411 - 417 (7page)

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Purpose: The purpose of this study is to compare the surgical outcomes and near stereoacuities after unilateralmedial rectus (MR) muscle resection and lateral rectus (LR) recession according to deviation angle in basicintermittent exotropia, X(T). Methods: Ninety patients with basic type X(T) were included in this study. They underwent unilateral recessionof the LR and resection of the MR and were followed postoperatively for at least 12 months. Patients weredivided into three groups according to their preoperative deviation angle: group 1 ≤20 prism diopter (PD), 20PD< group 2 <40 PD, and group 3 ≥40 PD. Surgical outcomes and near stereoacuities one year after surgerywere evaluated. Surgical success was defined as having a deviation angle range within ±10 PD for both nearand distance fixation. Results: Among 90 patients, groups 1, 2, and 3 included 30 patients each. The mean age in groups 1, 2, and 3was 9.4 years, 9.4 years, and 11.0 years, respectively. The surgical success rates one year after surgery forgroups 1, 2, and 3 were 80.0%, 73.3%, and 73.3% (chi-square test, p = 0.769), respectively. The undercorrectionrates for groups 1, 2, and 3 were 16.7%, 23.3%, and 26.7%, and the overcorrection rates were 3.3%, 3.3%,and 0%, respectively. The mean preoperative near stereoacuities for groups 1, 2, and 3 were 224.3 arcsec,302.0 arcsec, and 1,107.3 arcsec, and the mean postoperative near stereoacuities were 218.3 arcsec, 214.7arcsec, and 743.0 arcsec (paired t-test; p = 0.858, p = 0.379, p = 0.083), respectively. Conclusions: In basic X(T) patients, the amount of angle deviation has no influence on surgical outcomes inunilateral LR recession and MR resection. The near stereoacuities by one year after LR recession and MRresection for intermittent X(T) were not different among patient groups separated by preoperative deviationangle.

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