ABSTRACT
ABSTRACT: Purpose: To evaluate the etiologies and clinical features of patients with paralytic strabismus. Methods: The records of the patients followed with the diagnosis of paralytic strabismus were studied retrospectively. Results: Of 122 patients, 53 were women (43%), 69 were men (57%), and the average age was 32.1 23.8 years (range, 1-80 years). Abducens nerve palsy was determined in 47 (38.5%), trochlear in 36 (29.5%), oculomotor in 31 (25.4%) and multiple nerve palsies in 8 patients (6.6%). Etiologies were congenital in 39 (31.9%), trauma in 34 (27.9%), vascular in 20 (16.4%), undetermined in 13 (10.7%) and other causes in 16 cases (13.1%). The most commonly affected nerve was trochlear (p 0.000) in the pediatric group and abducens (p 0.006) in the adult group. Conclusion: Congenital and vascular diseases are the major causes of paralytic strabismus in childhood and adulthood, respectively. Each patient with paralytic strabismus should undergo appropriate investigation after a complete neuro-ophthalmologic examination.
