Acute Persistent Visual Loss: Retinal Vein Occlusion
What causes it?
Arteriosclerosis and hypercoagulable states are the main causes.
Visual loss is sudden and painless. As blood backs up onto the retinal surface, massive flame-shaped retinal hemorrhages create "the tomato catsup fundus."
What to do?
There is no treatment in the acute phase. Management is aimed at risk factor control. The patient must be monitored in the ensuing months for development of ocular neovascularization which may require photocoagulation.
To learn more, go to Principal Ophthalmic Conditions: central retinal vein occlusion.