Features of intraocular lymphoma. (A) Slit-lamp evaluation demonstrating advanced intraocular lymphoma with optic disc swelling, vasculitis, and subretinal and retinal infiltrates. (B) Optical coherence tomography demonstrating a nodular hyper-reflective lesion (arrow) at the retinal pigment epithelium and subretinal space. (Courtesty Paul Stewart, MD, University of California–San Francisco).