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KMID : 0360220080490060967
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Journal of the Korean Ophthalmological Society
2008 Volume.49 No. 6 p.967 ~ p.972
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The Effect of Reoperation in Inferior Oblique Overaction
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Moon Sung-Hyuk
Kim Myung-Mi
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Abstract
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Purpose:To evaluate the efficacy of re-recession or extirpation of inferior oblique (IO) muscle in recurrent or undercorrected IO overaction (IOOA).
Method: We reviewed the records of 26 patients (33 eyes) with the recurrent or undercorrected IOOA after the graded recession of IO muscle, who underwent re-recession or extirpation of IO muscle, and was followed up for at least 6 months. We performed extirpation of IO muscle overacting larger than +2 after 14 mm recession of IO muscle or larger than +3 after 10 mm recession of IO muscle. In case of +2 IOOA after 10 or 8 mm recession of IO muscle, we carried out 14 mm re-recession of IO muscle. IOOA under +1 was defined as a successful case after re-operation.
Result:Thirty one of 33 eyes (93.9%) were corrected successfully after re-operation; 24 eyes with extirpation of IO muscle (96.0%) and 7 eyes with 14 mm re-reccession of IO muscle (87.5%) were successful.
Conclusion: One of the advantages of graded recession of IO muscle is that additional re?recession or extirpation of IO muscle can be preformed if needed. Extirpation or 14 mm re-recession of IO muscle was effective re operation procedure to correct a recurred or undercorrected IOOA.
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KEYWORD
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Extirpation, Inferior oblique overaction, Re-operation, Re-reccession
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