Objective:To investigate clinical significance of color doppler examination to retina and choroidal microcirculation change in patients with type 2diabetes.Methods:The patients with type 2diabetes were divided into NDR group,NPR group,PR group and control group.The color doppler and pulse doppler imaging technology were applied to test dynamics condition of short artery of retinal after ciliary,central artery blood flow.The fasting blood glucose,glycosylated hemoglobin and biochemical indexes were tested.Re...