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  • Title: Comparison of Different Surgical Approaches to Inferior Oblique Overaction.
    Author: Sieck EG, Madabhushi A, Patnaik JL, Jung JL, Lynch AM, Singh JK.
    Journal: J Binocul Vis Ocul Motil; 2020; 70(3):89-93. PubMed ID: 32511077.
    Abstract:
    BACKGROUND: The purpose of this study is to compare surgical outcomes of recession, anteriorization, and myotomy for the treatment of inferior oblique overaction (IOOA). METHODS: A retrospective chart review of all patients undergoing IOOA correction from July 2010 to March 2017 at the Children's Hospital of Colorado was performed. Preoperative grading of IOOA (+0.5 to +4.0) was compared to post-operative IOOA (0 to +4.0). The goal was reduction of IOOA to 0, but any decrease in IOOA was measured. RESULTS: There were a total of 260 patients with 357 eyes. Gender and age were similar across surgery types. A 94.6% of eyes had a decrease in IOOA with recession (n = 165) of the inferior oblique while 86.1% decreased to no IOOA. Anteriorization of the inferior oblique (n = 115) decreased overaction in 97.4% of eyes with 81.7% improving to zero degree of IOOA. Myotomy of the inferior oblique (n = 77) was found to decrease overaction in 98.7% of eyes and reduce IOOA to zero in 88.3%. There was no significant difference among type of surgery and outcome. CONCLUSION: All three surgical interventions were found to be equally successful in reducing the amount of IOOA.
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