Three horizontal muscle surgery for large-angle esotropia: success rate and dose-effect ratio

To evaluate the moderate-term success and calculate the mean dose-effect ratio in large-angle esotropic patients who underwent three muscle surgery. In a retrospective study, we reviewed the medical records of 37 patients with large-angle esotropia who underwent bilateral medial rectus recession and...

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Bibliographic Details
Published in:	International journal of ophthalmology Vol. 13; no. 4; pp. 632 - 636
Main Authors:	Nabie, Reza, Manouchehri, Vahideh, Salehpour, Saba, Ghadim, Banafsheh Kharrazi, Bahramani, Erfan
Format:	Journal Article
Language:	English
Published:	China International Journal of Ophthalmology Press 18-04-2020 Press of International Journal of Ophthalmology (IJO PRESS)
Subjects:	Clinical Research dose response ratio large-angle esotropia three-muscle surgery large-angle esotropia three-muscle surgery dose response ratio
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Summary:	To evaluate the moderate-term success and calculate the mean dose-effect ratio in large-angle esotropic patients who underwent three muscle surgery. In a retrospective study, we reviewed the medical records of 37 patients with large-angle esotropia who underwent bilateral medial rectus recession and one lateral rectus resection. Sex, age at surgery time, amount of recessed or resected muscles in millimeter (mm), pre- and postoperative alignment in prism diopter (D), dose/response ratio, and presence of amblyopia and other associated vertical deviations were recorded. The mean age of subjects at surgery was 12.2±12.3y (range: 1-57). The mean preoperative deviation of 70.4±8.1 D (range: 60-85 D) decreased to a mean of 5.4±8.1 D (range: 0-30 D) postoperatively ( <0.005). Successful alignment was achieved in 30 of 37 patients (81%) at a mean follow-up of 15.7±20.1mo (range: 3-90). The mean amount of recession and resection was 17.59±1.29 mm, and a mean dose-response ratio of 3.79±81 (range: 2.83-4.66) was determined. Three-muscle surgery for large-angle esotropia results in good moderate-term outcomes without high rates of overcorrection or undercorrection.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2222-3959 2227-4898
DOI:	10.18240/ijo.2020.04.16