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Table 1 New staging system for Eales' disease

From: Eales' disease - current concepts in diagnosis and management

Stage Description
I Periphlebitis of small (Ia) and large (Ib) caliber vessels with superficial retinal hemorrhages
IIa Capillary nonperfusion
IIb Revascularization elsewhere/of the disc
IIIa Fibrovascular proliferation
IIIb Vitreous hemorrhage
IVa Traction/combined rhegmatogenous retinal detachment
IVb Rubeosis iridis, neovascular glaucoma, complicated cataract, and optic atrophy