| Comparison of Surgical Results by Initial Postoperative Alignment Following Bilateral Lateral Rectus Recession and Unilateral Lateral Rectus Recession-Medial Rectus Resection in Intermittent Exotropes. |
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Se Youp Lee, Young Chun Lee |
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Department of Ophthalmology, College of Medicine, Keimyung University, Taegu, Korea. |
| 간헐외사시에서 양안 외직근후전술과 단안 내직근절제 및 외직근후전술 후 초기 편위각에 따른 수술결과 비교 |
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이세엽(Se Youp Lee),이영춘(Young Chun Lee) |
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| Abstract |
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We attempted to predict the success, undercorrection, overcorrection rate at postoperative 1 year by examining alignment at postoperative 1 day and find out the relationship between alignment of postoperative 1 day and 1year. Forty-six patients with intermittent exotropia underwent bilateral lateral rectus recession at Keimyung university, Dongsan medical center and fifty-seven patients underwent unilateral medial rectus resection and lateral rectus recession at Catholic university, St.Mary`s hospital. The alignment at postoperative 1 day was classified as the overcorrected with 11-20PD, the overcorrected with 1-10PD,the orthotropia, and the undercorrected with residual exotropia of 1-10PD. There was a statistically significant relationship between alignment at postoperative 1 day and 1 year in unilateral medial rectus resection and lateral rectus recession and bilateral lateral rectus recession (r=0.74, r=0.51, p<0.05). Those patients who were overcorrected 1-20PD had a significantly higher success rate than those undercorrected 1-10PD at postoperative 1 day (p<0.05). In the unilateral medial rectus resection and lateral rectus recession group,postoperative 1 day alignment of 1-10PD resulted in the highest success rate of 73.7%. In the bilateral lateral rectus recession group,postoperative 1 day alignment of 11-20PD showed the highest success rate of 76.9%. There were no significant differences in the success rate,undercorrection rate, and overcorrection rate between the two kinds of surgery at postoperative 1 year. As a result, the alignment at postoperative 1 day can be one of the predictive factors of future surgical outcome. The initial postoperative overcorrection of 11-20PD in bilateral lateral rectus recession and overcorrection of 1-10PD in unilateral medial rectus resection and lateral rectus recession can lead to good results. |
| Key Words:
Bilateral lateral rectus recession;Intermittent exotropia;Unilateral medial rectus resection and lateral rectus recession |
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