High rate and large intercentre variability in retreatment of retinopathy of prematurity in infants born <24 gestational weeks.

Objective: Prematurity is a major risk factor for retinopathy of prematurity (ROP). We aimed to elucidate ROP prevalence, treatment and retreatment in infants born before 24 gestational age (GA) weeks in a Swedish cohort.

Methods And Analysis: Infants with completed ROP screening, born at <24 GA weeks, 2007-2018 in Sweden were included.