Patients without diplopia. Median Adult Strabismus-20 (AS-20) composite scores (A) and National Eye Institute Visual Function Questionnaire-25 (VFQ-25) composite scores (B) at pre-operative and post-operative exams by post-operative status (successfully aligned, partial success, and failure). Boxes represent 1st quartile, median, and 3rd quartile values; whiskers represent extreme values. The only pre- to postoperative comparisons that were significant were among successes (P values shown). For the AS-20 (A), change was greater for successes than failures. For the VFQ-25 (B), change was greater for successes than failures.