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The retina is the part of your eye that senses light so you can see. Retinal vein occlusion is a blood clot in a vein in the retina that blocks the flow of blood.
When this happens, doctors say the vein is "occluded." And this can damage nerve cells that help you see. Or the vein may leak, causing swelling.
There is no pain. But most people have blurry vision off and on. Or you may have a sudden loss of vision in that eye. Sometimes people get their vision back, but it often isn't as good as it used to be.
The same healthy lifestyle steps that help prevent other blood vessel diseases may help prevent this eye problem too.
Injecting medicine into the eye often helps improve vision. Laser treatment is sometimes used.
Treatment to manage diabetes, high blood pressure, or high cholesterol can help prevent retinal vein occlusion from happening again.
Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse advice line (811 in most provinces and territories) if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.
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Current as of: October 12, 2022
Author: Healthwise Staff
Medical Review:Kathleen Romito MD - Family Medicine & Adam Husney MD - Family Medicine & Christopher J. Rudnisky MD, MPH, FRCSC - Ophthalmology
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