Sadia Bukhari, Abdul Sami Memon, Umair Qidwai.
Success Rate of Surgical Correction Methods in Esotropias.
Ophthalmol Update Jan ;12(3):169-71.

Aim: The objective of our study is to compare the surgical outcome of different techniques of surgery in patients with esotropia. Methods: It was an observational case-series, conducted from January 2007 to December 2012. Patients were selected using non-probability purposive sampling. Patients having primary esotropia (deviation 15-75 PD) were included in the study. After informed written consent the patients were selected from the squint clinic of Al-Ibrahim Eye Hospital, Karachi. All the patients underwent detailed ophthalmic examination and underwent either bi medial rectus recession or unilateral medial rectus recession or unilateral medial rectus recession along with lateral rectus resection procedures. Patients were re-evaluated at one week, one month and two months post operatively. Final outcome was considered at the end of two months at which achievement of ?10 PD of exotropia was considered as a success. Analysis was done using SPSS version 20.0. Results: In this study, 272 patients were included. Out of these, 130 (47.8%) were male, while rest of the 142 (52.2%) were female. Mean deviation after surgery was 9.73 prism diopters (±12.03). Surgical success as described as residual deviation of less than 10 prism diopters was seen in 202 (74.3%) of the patients, while residual refraction of greater than 10 prism diopters was noted in 44 (16.2%) of the patients. Remaining 26(9.6%) of the patients had residual refraction of greater than 20 prism diopters and were advised second surgery. The patients, who underwent bi medial rectus recession, 36 (85.71 %) had successful surgery with no residual refraction. Similarly, 18 (90%) and 148 (70.47%) had successful surgery with less than 10 prism diopters of residual refraction after unilateral medial rectus recession and unilateral medial rectus recession combined with lateral rectus resection respectively. Conclusion: Unilateral medial rectus recession, bi medial rectus recession and unilateral medial rectus recession with lateral rectus resection, no matter which procedure is adopted for surgical correction of different forms of esotropias, almost similar success results in terms of residual angle and no of successful surgeries.

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