Epidemiology of ROP in the Stockholm area of Sweden.

A prospective, population-based study of the epidemiology of ROP in a well-defined geographical area of Sweden was performed. Two hundred and sixty children with a birth weight of 1500 g or less, and surviving for at least eight weeks, were included in the study. ROP was seen in 40.4% of the children. We suggest that prematurely born children with a gestational age of 32 weeks or less ought to be screened for ROP.