Three horizontal muscle surgery for large-angle infantile or presumed infantile esotropia: long-term motor outcomes.

Importance: Bilateral medial rectus muscle recession and one lateral rectus muscle resection surgery for the correction of large-angle infantile esotropia may be associated with a favorable long-term motor outcome. A consecutive exotropic drift was encountered more commonly than a recurrent esotropic drift in the long run, especially in the smaller (50-69 prism diopters [Δ]) range of preoperative esodeviation.

Objective: To outline the short- and long-term motor outcomes of graded bilateral medial rectus muscle recession and one lateral rectus muscle resection for the correction of large-angle esotropia (≥50Δ).