frequency and clinical features of duane's retraction syndrome

purpose: to evaluate the clinical features of duane’s syndrome in patients who were referred to nikoo-kari eye centre, tabriz, as a referral centre of northwest of iran. methods: we retrospectively reviewed medical records of all patients with duane’s syndrome who were referred to the strabismus clinic of our center during a 5-year period (2002-2006). clinical and demographic characteristics were evaluated. results: overall 63 patients including 36 (57.1%) female and 27 (42.9%) male subjects were enrolled which account for 2.5% of patients referred for any type of strabismus. mean age at presentation was 10.1±7.7 (range 1-35) years. left, right and both eyes were involved in 60.3%, 25.4% and 14.3%, res-pectively. the most common type of duane’s syndrome was type i (91.6%) followed by type ii (6.6%) and type iii (1.6%). the most common presenting sign was eye deviation. the prevalence of amblyopia was 19% and 47.6% of patients underwent surgery. conclusion: the rate of surgical intervention and the frequency of type iii duane’s syndrome was very low is our series as compared to other published studies.