{"id":449,"date":"2020-12-04T03:30:54","date_gmt":"2020-12-04T03:30:54","guid":{"rendered":"http:\/\/nelsiportland.com\/?page_id=449"},"modified":"2023-08-01T22:32:33","modified_gmt":"2023-08-01T22:32:33","slug":"retina-vein-occlusion","status":"publish","type":"page","link":"https:\/\/nelsiportland.com\/portland-lasik\/retina-vein-occlusion\/","title":{"rendered":"Retina Vein Occlusion (RVO)"},"content":{"rendered":"\n\n\t\t\t

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Retinal Vein Occlusion (RVO)<\/h1>\n\t

Arteries and veins carry blood throughout the eyes. The eye has one main artery and one main vein that each have multiple branches. When the main retinal vein becomes blocked, it is called central retinal vein occlusion (CRVO). If only a branch vein is occluded, the condition is called branch retinal vein occlusion (BRVO). When the vein is blocked, blood and fluid spills out into the retina. The macula can swell from this fluid, affecting your central vision. Eventually, without blood circulation, nerve cells in the eye can die and you can lose more vision.<\/p>\n\t

The most common symptom of retinal vein occlusion is vision loss or blurry vision in part or all of one eye. It can happen suddenly or become worse over several hours or days.<\/h2>\n\t