Mild diabetic rubeosis and panretinal photocoagulation.

In a group of 32 treated and 20 untreated eyes of diabetics with proliferative retinopathy, we applied fluorescein angiography (FAC) of the iris for a period of 5 to 7 weeks to follow up the effect of panretinal photocoagulation (PRP) on mild diabetic rubeosis, which was considered to be a neovascularization of the iris on FAG smaller than 0.5 mm2 in the early phases of the angiogram. The evaluation was carried out by two independent examiners. In the treated group, an improvement occurred in 3 of 32 eyes, in the control group in 2 of 20 eyes. We did not find regression of mild rubeosis after PRP.