Idiopathic retinal vasculitis, aneurysms, and neuroretinitis (IRVAN). Case report and literature review

Idiopathic retinal vasculitis, aneurysms, and neuroretinitis (IRVAN) is an infrequent disease, of as yet unknown aetiology, which affects the retina with no systemic injury, causing progressive retinal ischaemia and visual loss. We describe the case of a Colombian patient with a diagnosis of IRVAN guided by clinical examination and diagnostic images, after previously ruling out other ocular infections, autoimmune, or systemic diseases. Our patient was treated with peripheral laser, intravitreous anti-VEGF, and systemic immunosuppression with excellent response. In conclusion, early diagnosis and proper treatment according to disease stage could improve visual prognosis.