
24/01/2025
Stage 1 ROP: Demarcation line. A whitish line is visible between the normally vascularised retina and the peripheral retina in which there are no blood vessels
Stage 2 ROP: Visible ridge. The demarcation line develops into a ridge, with height and width, between the vascular retina and peripheral retina
Stage 3 ROP: Blood vessels in the ridge. Blood vessels grow and multiply (proliferate) and are visible in the ridge
Stage 4 ROP; Sub-total retinal detachment. Vitreoretinal surgery may be indicated
Stage 5 ROP: Total retinal detachment. No treatment is usually possible