prevalence of different types of ptosis at a referral hospital in tehran, iran

purpose: to assess the etiology, demography, surgical management and postoperative complications of ptosis in a referral ophthalmologic center. methods: we reviewed records of 233 ptosis patients managed at labbafinejad hospital during 1998-2003. etiology, age, sex, laterality, family history, amblyopia, past medical history, margin reflex distance and levator function, type of surgery, and postoperative complications were evaluated. results: the study included 117 female and 116 male subjects with mean age of 18.7±12.8 years. there was past ocular surgery in 85%, family history of ptosis in 3.4%, amblyopia in 19.2% and strabismus in 6.9%. ptosis was unilateral in 85% and bilateral in 15% and was congenital in 79%. conclusion: the most prevalent type of ptosis is congenital therefore early detection and referral of affected children is necessary to prevent amblyopia.