What is central retinal vein occlusion?
A person with central retinal vein occlusion has sudden blockage of blood flow in the retinal vein. The central retinal vein is the main artery that drains blood from the retina of the eye. When the vein becomes blocked, back pressure causes blood to leak into the retina, which causes malfunction of the retina and loss of vision. The majority of people are left with reduced vision in the eye.

What are the symptoms of central retinal vein occlusion?
Symptoms of central retinal vein occlusion include a sudden and painless loss of vision in one eye. Vision loss may be partial or complete.

How does the doctor treat central retinal vein occlusion?
Treatment for central retinal vein occlusion may include nonsteroidal anti-inflammatory medications, anticoagulants, and oral corticosteroids.