Results: In 100 cases of research on diabetic retinopathy, the proportion of female accounted for 66%, male 34%, the pre - proliferation period 89%, proliferation period 11%, the smallest age was 32 years old (1%), the highest age was 89 years old (2%), at the age < 5 years, the proportion of diabetic retinopathy was higher than the age > 5 years and > 10 years, the age < 5 years (52%); from 5 to 10 years old (30%), > 10 years was 18%.