Back انسداد الوريد الشبكي المركزي Arabic Zentralvenenverschluss im Auge German Obstrucción de la vena central de la retina Spanish Occlusion de la veine centrale de la rétine French חסימת וריד הרשתית המרכזי HE Occlusione della vena centrale della retina Italian സെൻട്രൽ റെറ്റിനൽ വെയിൻ ഒക്ലൂഷൻ Malayalam Occlusie van de vena centralis retinae Dutch Центральная окклюзия вен сетчатки Russian Okluzija centralne vene mrežnjače SH
| Central retinal vein occlusion | |
|---|---|
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| Diagram of the eye; retinal vein is number 21. | |
| Specialty | Ophthalmology  |
Central retinal vein occlusion, also CRVO, is when the central retinal vein becomes occluded, usually through thrombosis. The central retinal vein is the venous equivalent of the central retinal artery and both may become occluded.[1] Since the central retinal artery and vein are the sole source of blood supply and drainage for the retina, such occlusion can lead to severe damage to the retina and blindness, due to ischemia (restriction in blood supply) and edema (swelling).[2]
CRVO can cause ocular ischemic syndrome. Nonischemic CRVO is the milder form of the disease. It may progress to the more severe ischemic type.[3] CRVO can also cause glaucoma.
- ^ Ophthalmology at a Glance, Jane Olver & Lorraine Cassidy, Blackwell Science 2005.[page needed]
- ^ Hayreh, Sohan Singh; Zimmerman, M. Bridget; Podhajsky, Patricia (1994). "Incidence of Various Types of Retinal Vein Occlusion and Their Recurrence and Demographic Characteristics". American Journal of Ophthalmology. 117 (4): 429–41. doi:10.1016/S0002-9394(14)70001-7. PMID 8154523.
- ^ Central Retinal Vein Occlusion at eMedicine