J Korean Ophthalmol Soc > Volume 54(12); 2013 > Article
Journal of the Korean Ophthalmological Society 2013;54(12):1888-1892.
DOI: https://doi.org/10.3341/jkos.2013.54.12.1888    Published online December 13, 2013.
Contralateral Inferior Oblique Overaction after Inferior Oblique Recession in Unilateral Moderate Primary Inferior Oblique Overaction.
Sung Hyuk Moon, Dong Yub Kwak, Myung Mi Kim
1Department of Ophthalmology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
2Ulsan Shinsaegae Eye Clinic, Ulsan, Korea.
3Department of Ophthalmology, Yeungnam University Medical Center, Yeungnam University College of Medicine, Daegu, Korea. mmk@med.yu.ac.kr
한 눈 중등도 일차하사근기능항진 환자에서 하사근후전술 후 발생한 반대편 눈의 하사근기능항진
문성혁1⋅곽동엽2⋅김명미3
Department of Ophthalmology, Busan Paik Hospital, Inje University College of Medicine1, Busan, Korea
Ulsan Shinsaegae Eye Clinic2, Ulsan, Korea
Department of Ophthalmology, Yeungnam University Medical Center, Yeungnam University College of Medicine3, Daegu, Korea
Abstract
PURPOSE
To investigate the incidence rate of inferior oblique muscle overaction (IOOA) in the contralateral eye and the effect of inferior oblique (IO) muscle recession of the contralateral eye in the patients who received IO muscle recession for unilateral moderate (+2 or +3) primary IOOA. METHODS: Medical records of 88 patients with unilateral primary IOOA who underwent unilateral IO muscle recession were retrospectively reviewed and observed during a follow-up period of more than 1 year. Graded recession of the IO muscle was performed according to the degree of IOOA. If postoperative IOOA was below +1, the surgery was considered successful. If IOOA in the contralateral eye was more than +2 after surgery, the IOOA was considered to have occurred. RESULTS: In cases where IOOA was +2 and +3 before the surgery, the success rate was 98.2% and 100%, respectively, showing an overall success rate of 98.8%. The incidence of contralateral IOOA after recession of the unilateral IO muscle was 24.1% in the +2 group and 16.6% in the +3 group with an overall incidence rate of 21.6% and when the IO muscle recession of the contralateral eye was performed, the success rate was 100%. CONCLUSIONS: The incidence of contralateral IOOA was 21.6% after the unilateral IO muscle recession in moderate unilateral primary IOOA. A satisfactory outcome was obtained through an additional IO muscle recession in the contralateral eye.
Key Words: Contralateral inferior oblique muscle overaction;Unilateral inferior oblique muscle recession


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