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What is Earliest manifestation of diabetic retinopathy? and explain in detail?
types of diabetic retinopathy 1. NON- proliferative diabetic retinopathy 2. proliferative diabetic retinopathy. NON- proliferative diabetic retinopathy- 1st sign- Microaneurysm , seen on venular end of capillaries, posterior pole of retinain the Inner nucelear layer (5th Retinal layer ) Proliferative diabetic retinopathy.- Hallmark sign -Neovascularisation , that is fragile ,uncontrolled growth of vessels around discor periphral retina . Hard exudates-specific for diabetic retinopathy -these are the lipid droplets seen in outer plexiform layer (6th layer of retina). Soft exudates-cotton wool exudates , diy yellow in colour , due to stasis of axoplasmic flow in retinal nerve fibre layer (2nd retinal layer ) Dot and blot hemorrhages-Due to rupture of microaneurysm in Oiuter plexiform layer (6th layer of retina A.K. henle's layer) Proliferative diabetic retinopathy