Robuta

https://www.psu.edu/news/research/story/avastin-effective-eylea-treating-central-retinal-vein-occlusion
Monthly eye injections of Avastin (bevacizumab) are as effective as the more expensive drug Eylea (aflibercept) for the treatment of central retinal vein...
central retinal veinavastineffectiveeyleatreating
https://preventblindness.org/central-retinal-vein-occlusion/
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 veinocclusionpreventblindness