Retinal Vein Occlusion Treatment
A retinal vein occlusion (RVO) occurs when a vein in the retina is blocked. When the blockage happens in a branch, one of the smaller retinal veins, it is known as a branch retinal vein occlusion (BRVO). When the blockage happens in the central retinal vein at the back of the eye, it is known as a central retinal vein occlusion (CRVO).
A retinal vein occlusion can cause macular edema. This is a condition where blood and fluid leak into the macula and cause swelling and decreased vision. The macula is responsible for fine, central vision. Intravitreal injections such as Lucentis and Eylea can be used to treat macular edema (swelling of the macula). These injections, given at routine intervals, can slow the progress of the disease or in some cases improve it.
A RVO can also cause abnormal blood vessels to grow on the retina. These new vessels are fragile and can bleed easily. A laser treatment (photocoagulation) uses the Argon laser to seal the leaking blood vessels. It can also help to slow or stop the growth of abnormal blood vessels, decreasing the chance of bleeding in the eye. Sometimes several treatments may be needed.