𝘕𝘦𝘰𝘷𝘢𝘴𝘤𝘶𝘭𝘢𝘳𝘪𝘻𝘢𝘵𝘪𝘰𝘯 𝘰𝘧 𝘵𝘩𝘦 𝘥𝘪𝘴𝘤 (𝘕𝘝𝘋)
● New vessels on or within one disc diameter of the disc
● Occurs due to attempt at vascularising ischemic retina
● The new vessels lack the integrity and bifurcation of normal vessels and are fragile - bleed spontaneously
● Retinal and vitreous hemorrhages attract fibroglial elements → fibrovascular stalks → vitreous contraction → traction on retina → RD
● The neovascularization arises from the existing vascular supply of the normal optic disc and nerve fibre layer that includes both a uveal and retinal source
𝐂𝐚𝐮𝐬𝐞𝐬:
● Proliferative Diabetic Retinopathy
● Retinal vein occlusions
● Sickle cell retinopathy
● Retinopathy of prematurity
● Carotid stenosis
www.ophthalmobytes.com
Image from Rajan Eye Care Hospital
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