| The Effect of Medial Rectus Resection in Reccurent Exotropia After Lateral Rectus Recession. |
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Won Kyung Cho, Se Yup Lee, Young Chun Lee |
1Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul, Korea. yclee@cmcnu.or.kr
2Department of Ophthalmology, Keimyung University School of Medicine, Daegu, Korea. |
| 외사시로 한눈 혹은 두눈 외직근후전을 받은 후 재발한 외사시의 한눈 내직근절제술의 효과 |
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조원경1ㆍ이세엽2ㆍ이영춘1 |
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Department of Ophthalmology, College of Medicine, The Catholic University of Korea1, Seoul, Korea / Department of Ophthalmology, Keimyung University School of Medicine2, Daegu, Korea |
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| Abstract |
PURPOSE
To investigate the effect of unilateral medial rectus resection in recurrent exotropia under 25 Prism Diopter after unilateral or bilateral lateral rectus recession. METHODS: A retrospective chart analysis was conducted for 21 patients who underwent unilateral medial rectus resection for recurrent exotropia under 25PD and uni- or bilateral lateral rectus recession for prior surgery of exotropia. The medial rectus was resected from 5.0 to 7.0 mm by 0.5 mm according to angle deviation at a distance. The postoperative deviated angle was checked at one week, three months and six months postoperatively to investigate the amount of corrected deviation per resected muscle. RESULTS: The average preoperative deviation was 20.57+/-3.37PD. We resected mean 6.1+/-0.62 mm of the medial rectus. At one week after the surgery, the postoperative deviated angle was 2.00+/-4.32PD, After six months it was 6.57+/-7.40PD, and there appeared to be an increase of deviation. Ten patients (48%) fused before surgery and 12 (57%) after surgery. The corrected deviation per resected muscle was 2.88+/-1.08PD. CONCLUSIONS: Unilateral medial rectus resection is an effective surgical method for the treatment of recurrent exotropia under 25 PD after lateral rectus recession. |
| Key Words:
Lateral rectus recession;Recurrent exotropia;Unilateral medial rectus resection |
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