Table 1 Diabetic retinopathy (DR) grading based on the National Health Service Grading Classification System [17] with follow-up recommendations adapted from the American Academy of Ophthalmology [18]
Grade | Description | Recommendation |
|---|---|---|
R0 | No diabetic retinopathy | Re-evaluate in twelve months with either eye care provider or photographic screening |
R1 | Background DR | Refer to eye care provider |
R2 | Pre-proliferative DR | Refer to ophthalmologist promptly |
R3 | Proliferative DR | Refer to ophthalmologist promptly |
M | Maculopathy | Refer to ophthalmologist promptly |
P | Photocoagulation | Refer to eye care provider |
U | Unclassifiable/Ungradable | Refer to eye care provider |