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| Stage | Staging of proliferative sickle retinopathy (PSR) |
| Stage I | Peripheral arteriolar occlusion |
| Stage II | Vascular remodelling, formation of arteriovenous anastomoses |
| Stage III | Peripheral retinal neovascularization |
| Stage IV | Vitreous haemorrhage |
| Stage V | Retinal detachment |
PSR: proliferative sickle retinopathy
