Clinical practice guidelines  (PMID 30559232) by the American Diabetes Association in 2019 stated to avoid diabetic complications: 

• The  ADA recommends “Adults with type 1 diabetes should have an initial dilated and comprehensive eye examination by an ophthalmologist or optometrist within 5 years after the onset of diabetes.” 
• The  ADA recommends “Patients with type 2 diabetes should have an initial dilated and comprehensive eye examination by an ophthalmologist or optometrist at the time of the diabetes diagnosis.”
• The  ADA recommend that “If there is no evidence of retinopathy for one or more annual eye exam and glycemia is well controlled, then exams every 1–2 years may be considered.”  
• The  ADA recommend that “If any level of diabetic retinopathy is present, subsequent dilated retinal examinations should be repeated at least annually by an ophthalmologist or optometrist.

• The  ADA recommend that “If retinopathy is progressing or sight-threatening, then examinations will be required more frequently

Please help WikiDoc by adding content here. It’s easy! Click here to learn about editing.