Clinical Study

Surgical Outcome of Medial Rectus Resection in Recurrent Exotropia: A Novel Surgical Formula

Table 1

Preoperative patient characteristics.

UMR resection ()BMR resection () value

Mean age of onset (years)3.4 ± 2.15.8 ± 5.50.129
Gender: male7 (37%)9 (41%)0.790
Mean preoperative deviation at BLR recession
 Near (PD)31.2 ± 11.7 (12 to 55)45.0 ± 10.6 (25 to 65)0.001
 Distant (PD)32.5 ± 10.6 (18 to 55)44.1 ± 12.3 (25 to 75)0.004
Mean age at BLR recession (years)7.8 ± 8.610.5 ± 9.20.270
Mean age at MR resection (years)11.5 ± 8.2 12.8 ± 9.00.590
Interval between operations (months)48.3 ± 29.4 (10 to 144)29.1 ± 23.1 (6 to 85)0.010
Mean preoperative deviation for MR resection
 Near (PD)21.9 ± 5.4 (10 to 30)36.7 ± 10.5 (18 to 55)0.000
 Distant (PD)19.4 ± 3.8 (14 to 25)35.5 ± 10.1 (30 to 55)0.000
Presence of oblique surgery6 (31.6%)2 (9%)0.070
Follow-up duration (months)20.4 ± 12.5 (6 to 45)18.7 ± 13.3 (6 to 46)0.517

UMR: unilateral medial rectus; BMR: bilateral medial rectus; PD: prism dioptres; BLR: bilateral lateral rectus; LR: lateral rectus.