the eyes were classified into three groups : group i ( gi ) consisting of 32 eyes with no retinopathy or with stages 1 and 2 of simple diabetic retinopathy , group ii ( gii ) consisting of 21 eyes with stage 3 of simple retinopathy or pre-proliferative retinopathy and group iii ( giii ) consisting of 16 eyes treated by panretinal photocoagulation using an argon laser .
C0011884
diabetic retinopathy
C0015392
eyes