The Gloucestershire grading form
| Grade | Right eye | Description | Left eye | Grade | Outcome |
|---|---|---|---|---|---|
| 0 | No diabetic retinopathy | 0 | 12/12 | ||
| 1 | Minimal non-proliferative DR | 1 | 12/12 | ||
| 2 | Mild non-proliferative DR | 2 | |||
| 3 | Maculopathy | Referral | |||
| 3a | Haemorrhage <1 DD from foveal centre | 3a | “Routine” | ||
| 3b | Exudates <1 DD from foveal centre | 3b, c, d | “Soon” | ||
| 3c | Groups of exudates (including circinate and plaques within the temporal arcades >1 DD from foveal centre | ||||
| 3d | Reduced VA not corrected by a pinhole likely to be caused by a diabetic macular problem and/or suspected clinically significant macular oedema | ||||
| 4 | Moderate to severe non-proliferative DR | 4 | |||
| 4a | Multiple cotton wool spots (>5) | Refer “soon” | |||
| And/or multiple haemorrhages | |||||
| 4b | And/or intraretinal microvascular abnormalities (IRMA) | ||||
| And/or venous irregularities (beading, reduplication, loops) | |||||
| 5 | Proliferative DR | 5 | Refer “urgent” | ||
| New vessels on the disc (NVD) or | |||||
| New vessels elsewhere (NVE) | |||||
| Preretinal haemorrhage and/or fibrous tissue | |||||
| 6 | Advanced DR | 6 | Refer “immediate” | ||
| Vitreous haemorrhage, and/or traction/traction detachment, and/or rubeosis iridis | |||||
| PC | Treated diabetic retinopathy | ||||
| Photocoagulation scars anywhere | |||||
| Focal | |||||
| Sectoral | |||||
| Panretinal | |||||
| Grid |