Retinal haemangioblastoma associated with peripheral non-perfusion: widefield fluorescein angiography analysis of 41 cases.

Peripheral retinal non-perfusion can be associated with retinal haemangioblastoma, and could be more common with larger, more peripheral tumours in younger patients with VHL disease. Eyes with haemangioblastoma-associated peripheral non-perfusion could be more likely to develop neovascularisation and lose visual acuity.