1. Long-term Surgical Outcomes of Initial Postoperative Overcorrection in Adults with Intermittent Exotropia.
- Author
-
Ahn JH and Paik H
- Subjects
- Adolescent, Adult, Depth Perception physiology, Exotropia physiopathology, Female, Follow-Up Studies, Humans, Male, Middle Aged, Oculomotor Muscles physiopathology, Retrospective Studies, Treatment Outcome, Vision, Binocular physiology, Visual Acuity physiology, Young Adult, Exotropia surgery, Oculomotor Muscles surgery, Ophthalmologic Surgical Procedures
- Abstract
Purpose: To evaluate the relationship between initial postoperative overcorrection and long-term surgical success in exotropia patients., Methods: The medical records of 46 patients who underwent surgery for intermittent exotropia after the age of 18 were enrolled. Enrolled patients also had at least 2 years of postoperative follow-up. Based on the initial postoperative deviation at distance measured by prism and the alternating cover test at 1 week, patients were assigned to one of the following groups: group A included patients who demonstrated any esodeviation, while group B included patients who showed orthophoria to exodeviation of 10 prism diopters. The records were analyzed to determine the preoperative deviation with stereoacuity and postoperative deviations with stereoacuity at the follow-up examinations at the following intervals: 1 week; 1, 3, and 6 months; and 1 and 2 years. A comparison between groups for demographic data and preoperative and postoperative angles of deviation was performed using analysis of variance., Results: Of the 46 patients with intermittent exotropia included in this study, 18 (39%) belonged to group A, while 28 (73%) belonged to group B. The postoperative angle of deviation for distant fixation until 2 years of follow-up showed statistically significant differences in each group (p < 0.003 in all comparisons). The amount of exodrift until 2 years in group A (from ?9.7 ± 6.1 to 1.6 ± 3.7) was greater than that in group B (from 2.0 ± 2.7 to 6.8 ± 5.6). The long-term surgical success rate within 2 years of surgery was significantly better in group A than in group B (p = 0.027). The number of patients with intermittent diplopia and the duration of diplopia were greater in group A (n = 8) than in group B (n = 2)., Conclusions: Long-term surgical success was achieved in 89% of patients who were initially overcorrected. Overcorrection of an average of 10 prism diopters at the first postoperative week was found to be associated with a more favorable long-term surgical outcome., Competing Interests: No potential conflict of interest relevant to this article was reported., (© 2018 The Korean Ophthalmological Society.)
- Published
- 2018
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