Central retinal vein occlusion (CRVO) is the second most common source of permanent blindness in the Western world after diabetic retinopathy. By blocking the outflow pathway for the retinal circulation, visual prognosis is bad on the short and long term. Currently, treatment is mostly focused on treating the secondary effects: macular edema and neovascularization with antiVEGF and/or corticosteroid intravitreal injections and retinal laser photocoagulation. There is however a surgical treatment aimed at displacing the blood clot; a radial optic neurotomy. During this surgical treatment, the vitreous is removed by vitrectomy, after which a radial incision is made in the optic disc. The target of this incision is to open the canal in the lamina cribrosa to improve the blood flow in the central retinal vein. Since the outcome of this procedure is variable and has its inherent risks, mainly because the incision can damage the central retinal artery which is adjacent to the central vein, this procedure is not routinely performed in all vitreoretinal centers.