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    Evaluation of the equality of medial rectus advancement to medial rectus resection for consecutive exotropia
    (2022) Gunduz, Abuzer; Ozturk, Emrah; Ozsoy, Ercan
    Purpose: The aim of this study was to analyze the amount of medial rectus (MR) advancement in the treatment of consecutive exotropia by comparing it with the amount of MR resection in a sample of patients with constant exotropia and evaluate the effectiveness of MR advancement with lateral rectus (LR) recession in the management of consecutive exotropia.\rMaterials and Methods: A retrospective chart review of patients who underwent unilateral MR strengthening with LR weakening due to consecutive or constant exotropia was performed. Patients with consecutive exotropia underwent MR advancement with LR recession, and those with constant exotropia underwent MR resection with LR recession. The surgical dosages were determined according to a standard table. A successful result was defined as alignment within 10 prism diopters of orthotropia.\rResults: A total of 36 patients fulfilled the inclusion criteria: 18 had consecutive exotropia and 18 had constant exotropia. Successful alignment was obtained in 83.3% of patients with consecutive exotropia and 88.9% of patients with constant exotropia. There was no difference between the amount of MR advancement performed in consecutive patients with exotropia and the amount of MR resection performed in patients with constant exotropia. Postoperatively, while consecutive exotropes with a poor result showed overcorrection, constant exotropes with a poor result showed undercorrection.\rConclusion: This study suggests that there is no difference between the amount of previously recessed MR advancement and that of untouched MR resection. They also showed that MR advancement with LR recession is an effective means of correcting secondary exotropia.
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    Infantile Esotropia: Clinical Features and Results of Bilateral Medial Rectus Recession
    (2023) Gunduz, Abuzer; Ozturk, Emrah; Ozsoy, Ercan; güntürkün, Pelin Nazlı
    Introduction: To define the characteristics of infantile esotropia and evaluate the results of bilateral medial rectus recession in infantile esotropia. Methods: A retrospective review was performed on medical charts of patients diagnosed with infantile esotropia. All patients underwent an ophthalmological examination to detect the conditions that accompany infantile esotropia. Patients with two years of age or older and without fixation preference or amblyopia underwent bilateral medial rectus recession. Results: There were a total of 117 patients with infantile esotropia patients. Infantile esotropia was accompanied by inferior oblique hyperfunction, fixation preference, cross-fixation, pseudoabduction deficit, pattern deviations, nystagmus, dissociated vertical deviation, convergence insufficiency, and abnormal head position. Approximately forty percent of the patients compatible with visual acuity measurements had amblyopia. Bilateral medial rectus recession decreased the mean esotropia from 43.1±15.3 to 7.8±12.8 prism diopters (PD) in 65 patients. Postoperatively, 41 patients had an ocular alignment within 10 PD of orthotropia, 22 patients showed undercorrection and 2 overcorrection. Conclusion: The characteristics of infantile esotropia in our study are substantially consistent with those of early reports, except for convergence insufficiency. This study also showed that bilateral medial rectus recession appears to have a high percentage of undercorrection in short-term postoperative follow-up in infantile esotropia.