Not a manifestation of non proliferative diabetic retinopathy
Drusens
Hard exudates
Dot blot haemorrhage
Cotton wool spots
Drusens are pathognomic of dry ARMD and not diabetic retinopathy Manifestations OF non proliferative diabetic retinopathy - a. Microaneurysm: Saccular outpouchings of the vessel wall due to loss of pericytes b. Dot blot haemorrhage: Due to break of wall of microaneurysm in the deep layers c. Superficial haemorrhage: haemorrhage in superficial layers d. Hard exudates: Lipofuschin deposits in inner layer e. Cotton wool spots: NFL Infarction f. Intraretinal microvascular anomalies: abnormal communicating vessels between aeries and the veins g. Venous bleeding
Retina