Early diagnosis of sub-clinical stage of diabetic retinopathy

AIM: To evaluate the early diagnosis of sub-clinic stage of diabetic retinopathy.METHODS: This was cross sectional study,multifocal retina electroretinogram(mf-ERG), contrast sensitivity(CS)and central retinal artery color Doppler examination were recorded from 30 cases(30 eyes)matched control subjects, 35 cases(35 eyes)with type 2 diabetes mellitus(DM)without diabetic retinopathy(NDR)and 38 cases(38 eyes)with non-prolifera tive diabetic retinopathy(NPDR). One-way ANOVA and SNK-q test were used for data analysis.RESULTS: P1 response density of NDR patients were found decrease, N1 implicit time were delayed. Which were related with the degree of retinopathy(P