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Retinal cysts as in cystoid macular edema occur in the center, cause blurring and are due to inflammation, usually after surgery. Cysts in the peripheral retina are quite normal and are sometimes called cystic retinal tufts. Occasionally, cystic tufts can be torn by acute vitreous separation causing a retinal tear which may be lasered to prevent detachment. ...
Retinal Vein Occlusion. Retinal vein occlusion (CRVO) is also treated with Eylea. Like AMD, retinal vein occlusion involves leaky abnormal blood vessels. Eylea blocks the natural chemical in our bodies, vascular endothelial growth factor (VEGF), that causes the blood vessels to leak. Once these leaking blood vessels are sealed, retinal hemorrhages and edema from the vein occlusion subside and vision is often remarkably improved.