Article 5

Background: Strabismus may result from either deficiencies in binocular vision or deficiencies in neuromuscular regulation of eye movement. Objectives: This study aims to evaluate all children presented to the Strabismus clinic with divergent squint (exotropia); and to record the surgical outcomes for those who underwent strabismus surgery. Methods: A hospital-based, prospective, interventional study was conducted on 40 children who presented to the Strabismus Clinic in the Ophthalmology Department, at Sohag University Hospital, Egypt in the period between June 2021 & may 2022 with concomitant divergent squint and they were subjected to squint surgery and observed for six months after the procedure. The studied cases were classified according to the type of exotropia into three main groups: constant exotropia, intermittent exotropia and sensory exotropia (n=9). Results: The study was conducted among 40 cases with concomitant exotropia classified into three groups, constant exotropia, 10 patients (25%); intermittent exotropia, 21 patients (52.5%) and sensory exotropia, 9 patients (22.50%). Regarding demographic data. There is sta-tistically insignificant difference according the age of onset. However, there is statistically significant difference between the studied groups according to age at surgery and duration of strabismus. Regarding operative evaluation, there is insignificant difference between the studied groups acc-ording to type of surgery. Post-operative evaluation indicated that there is insignificant difference between the groups according to ocular alignment in form of orthotropic, residual exotropia and consecutive esotropia. Conclusion: The predominant kind of exotropia seen was intermittent exotropia. Intermittent exotropia yielded superior surgical outcomes compared to other forms, but bilateral lateral rectus recession outperformed unilateral recession-resection.