Surgical treatment outcomes and predictors for consecutive exotropia
Reviewed by Fiona Rowe

This retrospective study presented the long-term results of consecutive exotropia surgery and its prognostic factors, and compared efficacy of medial rectus advancement, lateral rectus recession, or a combination of both. Patients were treated between 2000–2020. Mean age was 33.98 ±17.68 years and there were 51 females and 37 males. Mean best corrected visual acuity for each eye was 0.7logMAR. Time since onset of consecutive exotropia was 347.9 ±265.4 months. Mean angle of deviation for near fixation was 34.4 ±16.45PD and for distance, 34.36 ±16.33PD. Vertical deviation was present in 55 cases and limited adduction in 51 right eyes and 47 left eyes. Poor convergence was present in 75 cases. Advancement of one or both medial recti was done for 36.36%, recession of one or both lateral recti for 27.27% and combination for 36.36%. Surgery was unilateral for 65.91% and bilateral for 34.09%. A good motor response, defined as <10PD, was documented for 69.32% with reoperation required for 11.36% and botulinum toxin for 5.68%. Greater near horizontal deviation and association with vertical deviation were identified as risk factors for a poor result, along with worse preoperative convergence.

Predictors and efficacy of surgical treatment for consecutive exotropia.
Merino P, Mata A, Diaz N, et al.
STRABISMUS
2023;31(2):129–34.