VEGFA and retinopathy of prematurity: Retinopathy of prematurity (ROP) is a sight-threatening disease of the developing retina in infants born preterm.1 In the first phase of ROP, vasoactive growth factors, such as vascular endothelial growth factor A (VEGF-A) and platelets-derived growth factors (PDGFs), are suppressed in the hyperoxic retina and normal retinal vascularization is arrested.