Vitreous hemorrhage complicating laser-induced chorioretinal anastomosis for central retinal vein occlusion

Purpose To report a severe complication of laser chorioretinal anastomosis for central retinal vein occlusion. Method Case report. Results In the right eye of a 62-year-old woman with nonischemic central retinal vein occlusion, retinal neovascularization at the laser chorioretinal anastomosis site caused dense secondary vitreous hemorrhage. Vitreous hemorrhage prevented laser panretinal photocoagulation for subsequent iris neovascularization, necessitating vitrectomy surgery to clear the hemorrhage and allow the treatment. Conclusion Laser chorioretinal anastomosis can result in severe vitreous hemorrhage and complicate efforts to manage later sequelae of central retinal vein occlusion.