Your retina has veins and other blood vessels that carry blood. When a vein in your retina is blocked (occluded), it is called a retinal vein occlusion. This can be caused by a blood clot or when a larger vessel compresses the run due to “hardening of the arteries” or atherosclerosis.
With retinal vein occlusion, weaker blood vessels may end up carrying more blood. They might start to leak, which causes the macula to swell or thicken. This is called macular edema, and it leads to blurry vision or vision loss.
There are two types of retinal vein occlusion:
Call your ophthalmologist right away if you experience any of the following symptoms:
It is not known exactly what causes retinal vein occlusion. However, you are more likely to have retinal vein occlusion if you have:
Treatments may include: