“…Many other studies reported ROP incidence ranging from 10% to 66% in infants with low birth weights in the United States and worldwide (Shohat et al 1983;Cats& Tan KEW ,1985;Bullord et al,1998;Fledelius& Dahl ,2000;Akkoyun et al,2006;Rowlands et al 2001;Hussain&Clive& Bhandori,1999;Wright et al,1998;Custick et al 2006;Yang et al 2006).…”