Comparative Evaluation of Unilateral Recession-Plication Versus Bilateral Three-Muscle Surgery for Large-Angle Exotropia.

The mean preoperative deviation for distance in the two-muscle (n = 34) and three-muscle (n = 32) groups was 56.53 ± 5.62 and 54.89 ± 5.83 prism diopters, respectively ( P = .849).

The mean postoperative deviation was 9.29 ± 3.16 prism diopters in the two-muscle group and 8.44 ± 3.54 prism diopters in the three-muscle group at the 6-month postoperative visit ( P = .303).

Both groups showed a statistically significant improvement in AS-20 scores.