Central Retinal Vein Occlusion
A blockage of the small blood vessels that carry blood away from the retina, located in the back of the eye.

What is CRVO?
Veins return oxygen-depleted blood back to the heart.  The retina has one major artery and one major vein.  The vein is called the central retinal vein.  Central retinal vein occlusion (CRVO) is a blockage of this vein that causes the vein to leak blood and excess fluid into the retina. This fluid often collects in the area of the retina responsible for central vision called the macula. When the macula is affected, central vision may become blurry.

*3D OCT(Fundus Photography)

Most patients with CRVO, especially the ischemic type, have some reduced central vision, although some may regain some vision without treatment. It is important to determine the cause of the blockage through a medical evaluation. There is no treatment available for CRVO but there are treatments for the complications related to CRVO.
Injectable medications and steroids can be used to treat macular edema.  
Laser treatment called panretinal photocoagulation is used to prevent neovascular glaucoma. This procedure uses a laser beam to treat many places on the retina. This technique helps prevent the growth of new, abnormal blood vessels.Those with CRVO need to see an eye doctor at regular intervals to monitor for neovascular glaucoma and should be seen earlier and more frequently if there is a noticeable decrease in vision or eye pain.
Laser blast therapy is also use in CRVO patients and same result is found as BRVO.

Prevent Blindness is the patient advocate for healthy vision. We educate people about their risk of eye disease and steps they can take to protect their sight. We promote access to eye care and support research into the prevalence, cost, and cure of eye disease.

A New Technique "Laser Clot Blast Therapy for Central Retinal Vein Occlusion​

In this Technique the Yag laser break the clot blocking the vein in the “branch retinal vein occlusion or Central Retinal Vein Occlusion”, by an ingenious method. The Patent gains vision immediately after the application of the device in those cases where recovery of the vision has been mentioned as impossible in the past.

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