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목적 : To evaluate the efficacy of slanted recession of the lateral rectus (LR) muscle for intermittent exotropia (IXT) with convergence weakness
방법 : A retrospective analysis was made of all patients who underwent slanted LR recession between January 2010 and June 2012 for IXT with convergence weakness. Twenty-nine patients were included in this study. All patients had their follow-up duration more than 3 months. The medical records were reviewed and the following parameters were recorded and analyzed: patient’s sex, age, preoperative and postoperative ocular alignment at distance and near and changes of their stereopsis.
결과 : The study group was composed of 14 males and 15 females, with a mean age of 10.8. Preoperative mean deviation angle was 31.9 ± 5.4 PD at distance and 42.6 ± 5.8 PD at near. Slanted LR recession reduced the deviation angles to 2.7 PD at distance and 3.4 PD at near at 3 months. In addition, the mean difference between the distance and near deviation angles was significantly reduced from 10.7 PD preoperatively to 0.7 PD at 3 months postoperatively (p<0.05). The mean stereopsis was significantly increased from 435 arcsec preoperatively to 94.4 arcsec at 3 months postoperatiely (p<0.05).
결론 : Slanted recession of the LR was effective in reducing near-distance differences. This surgical technique also demonstrated a positive impact on stereopsis.
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