Surgery For Exotropia: 15-35 Diopters XT (Two Muscles*)

D BLRc LRc/MRs
15 4 mm 4/3 mm
20 5 mm 5/4 mm
25 6 mm 6/5 mm
30 7 mm 7/6 mm
35 8 mm 8/6 mm

Use adjustable suture whenever possible on 1 LR up to 60 D, on both LR on deviations >60 D

*Choose either Bilateral lateral rectus recessions (BLRc) or a medial rectus resection (MRs) and a lateral rectus recession (LRc). Bilateral medial rectus resections are also used for convergence insufficency type exotropias.