the effect of successful surgical alignment on improvement of binocular vision in adults with childhood strabismus

purpose: to evaluate the effect of successful surgical alignment on improvement of binocular vision in adults with childhood strabismus methods: in a prospective interventional study, consecutive patients with childhood-onset, comitant, horizontal and constant strabismus who had successful postoperative alignment were enrolled. preoperative and postoperative binocular vision testing was performed using the bagolini striated lenses and the worths 4-dot test. improvement of binocular vision was defined as conversion of suppression to fusion response in bagolini test and conversion of suppression to fusion or monofixation response in worth 4-dot test at three months after surgery. results: a total of 34 patients (15 females and 19 males) were included. the mean age at the time of surgery was 26.08±10.53 years (range, 14-53 years). the mean angel of deviation was 40.29±14.35 prism diopter (range, 20-75 prism diopter). binocular vision was improved in 20 of 34 patients (58.8%) in bagolini test, also, binocular vision was improved in 20 of 34 patients (58.8%) in worth 4-dot test. there was no significant correlation between duration of misalignment and sensory outcome (p=0.67). there was a statistically insignificant increase in improvement of binocular vision in exotropic group (65%) compared with esotropic group (50%) (p=0.48). also, there was a statistically insignificant increase in improvement of binocular vision in nonamblyopic group (60.8%) compared with amblyopic group (54.5%) (p=0.5). the angel of preoperative deviation had no influence on improvement of binocular vision (p=0.08). conclusion: surgical realignment leads to improvements in binocular vision in 58.8% of adults with childhood strabismus regardless of the type and angle of preoperative deviation, duration of strabismus, or amblyopia.   iranian journal of ophthalmology 201426(2):92-6 © 2014 by the iranian society of ophthalmology