Retinal veins are larger than retinal arteries. Retinal veins are between 2/3 to 3/4 times larger than the arteries of the retina. Retinal vein are also darker red then the arteries.

retinal breaks or detachments; retinal ischemia (retinal tissue that lacks oxygen); neovascularization (proliferation of blood vessels in the retina); Coats' disease

Retinal vein occlusion refers to the closure of the central retinal vein that drains the retina or to that of one of its branches.

Lucentis is an anti-VegF drug ranibizumab used to treat Wet AMD and macular edema associated with retinal vein occlusion (RVO). Ozurdex is a dexamethasone implant used to treat macular edema associated with retinal vein occlusion (RVO) as well as non-infectous posterior segment uveitis. For RVO, the two drugs work differently but Ozurdex is seen to last longer than Lucentis and therefore less frequent injections. Ask your doctor for more details and for which one is right for you.

Retinal