Paralytic Strabismus in Turkish Children Examined at Three Tertiary Care Services: A Retrospective Cohort Study.

Purpose: To assess the etiology and distribution of pediatric ocular motor nerve palsy manifesting as paralytic strabismus.

Methods: The authors retrospectively examined the medical files of patients younger than 18 years who were suspected to have strabismus between January 1999 and June 2012 in three Turkish clinics and followed up for at least 6 months. Patients with paralytic strabismus were stratified according to age, sex, affected cranial nerve, and etiology (congenital, traumatic, neoplastic, post-viral, vascular, undetermined, or other), and compared the proportions between groups.