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  • Title: Modified loop myopexy technique for severe high myopic strabismus fixus.
    Author: Zou L, Liu S, Liu R, Yao J, Liu Y, Lin J, Liu H.
    Journal: Clin Exp Ophthalmol; 2017 Nov; 45(8):790-796. PubMed ID: 28418222.
    Abstract:
    IMPORTANCE: This study introduces a modified loop myopexy technique for severe high myopic strabismus fixus. BACKGROUND: This study aims to evaluate the surgical results of loop myopexy with or without medial rectus recession for the treatment of patients with myopic strabismus fixus. DESIGN: This is a retrospective study in a Chinese teaching hospital. PARTICIPANTS: Data was collected from 25 myopic strabismus fixus patients (33 eyes) with restriction in both abduction and sursumduction. METHODS: First, the loop myopexy technique was performed. Following the loop myopexy technique, a medial rectus recession was performed if esotropia remained. If esotropia and/or hypotropia still persisted, second-stage surgery of the contralateral eye was performed. MAIN OUTCOME MEASURES: The main outcome measures were ocular deviations, eye movements and the angles of dislocation of the globe. RESULTS: At the last follow-up, mean deviation of esotropia was significantly improved (10 vs. 92 PD; p = 0.000), while mean deviation of hypotropia was improved (6 vs. 32 PD; p = 0.008). Mean abduction limitation was improved (-2.7 vs. -5.0; p = 0.000); mean elevation limitation improved (-3.2 vs. -5.0; p = 0.000). The angle of dislocation of the globe was significantly decreased (103.0 vs. 235.3 D; p = 0.002). CONCLUSIONS AND RELEVANCE: Modified Yokoyama's surgery effectively corrected the restrictive esotropia and hypotropia, restored the dislocated globe back into the muscle cone and improved the eye movement in severe myopic strabismus fixus.
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