Occlusive vasculitis and optic disk neovascularization associated with neuroretinitis.

Purpose: To report a case of neuroretinitis associated with ischemic nasal branch retinal vein occlusion, periphlebitis, and neovascularization of the optic disk.

Methods: Case report.

Results: A 32-year-old man presented with a typical image of neuroretinitis, retinal hemorrhages and sheathing of the retinal veins in the nasal retina.

[Keratitis due to Acanthamoeba].

Free-living amebae appertaining to the genus Acanthamoeba, Naegleria and Balamuthia are the most prevalent protozoa found in the environment. These amebae have a cosmopolitan distribution in soil, air and water, providing multiple opportunities for contacts with humans and animals, although they only occasionally cause disease. Acanthamoeba spp.