Diabetic retinopathy -Etdrs

early treatment of diabetic retinopathy scale

1. Early Treatment of Diabetic Retinopathy Scale (ETDRS) MILD NPDR MODERATE NPDR SEVERE NPDR EARLY PDR HIGH-RISK PDR 1

2. Continued… MILD NPDR At least one microaneurysm, and Criteria not met for more severe Retinopathy MODERATE NPDR Hemorrhages/Microaneurysms > standard photog raph 2A And/Or Cotton wool spots, venous beading or IRMA definitely present; And criteria not met for more severe retinopathy Stages of ETDRS 2

3. Continued… SEVERE NPDR Cotton wool spots, venous beading, and IRMA definitely present in at least two of photographic fields 4 to 7; Or two of the three preceding features present in at least two fields 4 to 7 and hemorrhages/microaneurysms present in fields 4 to 7 > standard photograph (2A) in at least one of them; Or IRMA present in each of fields 4 to 7 and > standard photograph (8A) in at least two of them; And criteria not met for more severe retinopathy 4

4. EARLY PDR New vessels; And criteria not met for high risk PDR HIGH-RISK PDR New vessels on or within one disc diameter of the optic disc (neovascularization of the disc) NVD > standard photograph 10A (approximately 1/4 - 1/3 disc area) with or without vitreous or preretinal hemorrhage; Or vitreous and/or preretinal hemorrhage accompanied by new vessels, either NVD < standard photograph 10A or new vessels elsewhere (NVE) > 1/4 disc area 6