Fig. 3From: Vascular changes on fluorescein angiography of premature infants with low risk of retinopathy of prematurity after high oxygen exposureImage a shows an elevated demarcation line. Image b shows microaneurysms or tufts posterior to the ridge along with discrete leakage of fluorescein at the ridge (white arrow). There are also vasoobliterative and capillary free areas (circle). Of note is that the demarcation line is irregular and we can find capillary free islands posterior to the ridgeBack to article page