Retinal Vein Occlusion

Retinal Vein Occlusion
This photo taken with the ViaOptaSim app intends to provide a first person look at living with Retinal Vein Occlusion.

Retinal Vein Occlusion, or RVO, is the result of a blockage forming in the blood vessels of the retina. This blockage prevent blood from being drained from the retina, which can lead to significant vision loss. There are two main types of RVO that are based on where the blockage occurs. In central RVO (CRVO) the blockage occurs in the main retinal vein at the optic nerve and can cause severe vision loss, while in branch RVO (BRVO) the blockage occurs in one of the four branches of the retinal vein. RVO can develop over a long time period or occur suddenly.