The Effect of Reoperation in Inferior Oblique Overaction.

Moon, Sung Hyuk; Kim, Myung Mi

doi:2008.49.6.967

J Korean Ophthalmol Soc > Volume 49(6); 2008 > Article

Original Article

Journal of the Korean Ophthalmological Society 2008;49(6):967-972.
DOI: https://doi.org/10.3341/jkos.2008.49.6.967 Published online June 15, 2008.

The Effect of Reoperation in Inferior Oblique Overaction.

Sung Hyuk Moon, Myung Mi Kim

Department of Ophthalmology, Yeungnam University College of Medicine, Daegu, Korea. mmk@med.yu.ac.kr

하사근기능항진에 대한 재수술의 효과

문성혁ㆍ김명미

Department of Ophthalmology, Yeungnam University College of Medicine, Daegu, Korea

Abstract

PURPOSE
To evaluate the efficacy of re-recession or extirpation of inferior oblique (IO) muscle in recurrent or undercorrected IO overaction (IOOA). METHODS: 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. RESULTS: 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. CONCLUSIONS: 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.

Key Words: Extirpation;Inferior oblique overaction;Re-operation;Re-reccession