Table 1.

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