Incidence and risk factors for retinopathy of prematurity in North of Iran

Purpose: to report the incidence and risk factors for retinopathy of prematurity (rop) among preterm infants referred to amiralmomenin eye hospital,rasht,iran. methods: this cross-sectional retrospective study included all preterm infants with birth weight ≤2500 g and/or gestational age ≤36 weeks who had been referred to our facility for rop screening over a five year period from september 2005 to september 2010. possible risk factors and findings related to eye examinations were extracted and analyzed. results: among 310 infants,rop was diagnosed in 64 (20.6%) of referred preterm infants (95% ci: 17.7%-23.5%); these included stage i in 48%,stage 2 in 29%,and stage 3 or higher disease in 23% of subjects. mean gestational age (ga) and birth weight (bw) in the rop-affected infants was 30.18 ± 2.28 weeks and 1,422.8 ± 420.8 g,respectively. low bw,low ga,oxygen therapy,phototherapy,blood transfusion and apnea were risk factors for rop. after logistic regression analysis,only low ga and low bw were independently associated with the condition. conclusion: rop is a relatively common finding in preterm infants of guilan province in the north of iran. low bw and low ga were significant risk factors for the disease. © 2015 journal of ophthalmic and vision research | published by wolters kluwer - medknow.