Behaviour of the iris vasculature in central retinal vein occlusion: A fluorescein angiographic study of the vascular response of the retina and the iris

Abstract

The findings in iris fluorescein angiograms of 48 eyes with central retinal vein occlusion (CRVO) were correlated with the predominant retinal vascular response. In 24 eyes with the nonischaemic type of CRVO there were no or only minimal iris vessel changes, whereas in all 24 eyes with ischaemic type of CRVO there was iris dilatation and leakage with or without neovascularization. These findings support the hypothesis that hypoxic retina may be a cause of rubeosis iridis in CRVO.