| Comparison of Recession, Anterior Transposition, and Myectomy for Inferior Oblique Overaction. |
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Hae Jung Paik, Jin Seok Choi |
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Department of Ophthalmology, Gachon University of Medicine and Science, Incheon, Korea. hjpaik@gihospital.com |
| 하사근 후전술, 전치술 및 절제술의 하사근기능항진 교정 효과 비교 |
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백혜정,최진석 |
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Department of Ophthalmology, Gachon University of Medicine & Science, Incheon, Korea |
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Correspondence:
Hae Jung Paik, M.D. |
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| Abstract |
PURPOSE
To compare the clinical outcomes of recession, anterior transposition, and myectomy of overacting inferior oblique (IO) muscles. METHODS: A total of 69 patients, (92 eyes) who underwent recession (38 eyes), anterior transposition (25 eyes), or myectomy (29 eyes) for overacting IO muscles in one or both eyes, were evaluated retrospectively with a follow-up period of 12.8 months (3~60 months). RESULTS: We applied a grading system with a 5-point scale to the IO muscle. (0 to 4 for IO muscle overaction and 0 to -4 for IO underaction) The average preoperative IOOA was +2.13+/-0.94 in recession, +2.35+/-0.88 in anterior transposition, and +2.04+/-0.81 in myectomy. These were reduced to +2.04+/-0.81, +2.35+/-0.88, and -0.02+/-0.23 respectively. The average preoperative and postoperative hyperdeviation in primary gaze was 10.25+/-4.54PD to 2.37+/-0.98PD in recession, 9.02+/-4.53PD to 3.64+/-1.23PD in anterior transposition, and 7.25+/-3.21PD to 0.67+/-0.51PD in myectomy. CONCLUSIONS: Recession, anterior transposition, and myectomy of the IO muscles were all effective in IOOA and hyperdeviation, and showed continuing drift towards orthotropia. |
| Key Words:
Anterior transposition;Myectomy;Recession |
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