Diabetic retinopathy.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001766:Blindness / Q000209:etiology*; D003930:Diabetic Retinopathy / Q000150:complications*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013997:Time Factors; D014792:Visual Acuity