Journal of the Korean Ophthalmological Society 1999;40(2):544-549.
Published online February 1, 1999.
Asymmetric Bilateral Lateral Recti Recession in Intermittent Exotropia.
Yoonae A Cho, Seung Min Kang, Gyeong Hwan Roh
Department of Ophthalmology, College of Medicine, Korea University.
간헐외사시에서 양안 비대칭 외직근후전술
조윤애(Yoon Ae Cho),강승민(Seung Min Kang),노경환(Gyeoung Hwan Roh)
Abstract
It is reported that the recurrence rate in intermittent exotropia is 20-50%. In this study, we evaluated whether the recurrence is reduced with asymmetric recession of bilateral lateral recti(LROU) in intermittent exotropia.Twenty-nine patients underwent the asymmetric LROU recession for intermittent exotropia with follow-up of 6-54 months. The amount of recession of lateral rectus muscle in deviating eye was 2mm more than in the fixating eye. Immediate postoperative overcorrection, the rate of orthophotia, and the occurrence of consecutive esotropia(ET) were analysed.The mean amount of immediate postoperative esodeviation was 16.5+/-7.4PD(0-34PD); four patients showed 0-4PD, 18 patients 11-20PD, and 7 patients showed considerable amount of ET as high as 21-30PD. Consecutive EToccurred in 6.8% of patients despite large amounts of postoeprative ET. The outcome of orthophoria was favorable, in 93.1% of patients in follow up of 6 months, 85.1% in 12 months and 78.5% in 24 months.This study suggests that asymmetric LROU recession is an effective procedure for the correction of intermittent exotropia.
Key Words: Asymmetric bilateral lateral recti recession;Consecutive esodeviation;Effective procedure;Immediate postoperative esodeviation;Intermittent exotropia


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