title: Problems with attempted chorioretinal venous anastomosis by laser for nonischemic CRVO and BRVO.
abstract: OBJECTIVE
  To report the complications and long-term results of laser-induced chorioretinal venous anastomosis in vein occlusions.
  
  
  METHODS
  Eight consecutive eyes, 3 with central retinal vein (CRVO) and 5 with branch retinal vein occlusion (BRVO), were observed for up to 5 years after attempted laser-induced chorioretinal venous anastomosis.
  
  
  RESULTS
  Successful chorioretinal venous anastomoses were created in 2 (25%) eyes. Patients had severe complications, including vitreous hemorrhage, choroidal neovascular membrane, choriovitreal neovascularization, rubeosis iridis and neovascular glaucoma.
  
  
  CONCLUSIONS
  The utilization of a chorioretinal venous anastomosis by laser with proposed laser settings as a therapeutic modality should be further analyzed, and a careful long-term follow-up must be done to avoid vision-threatening complications.
authors.affiliation: Department of Ophthalmology, Marmara University Medical School, Istanbul, Turkey.
authors.forename: Tayfun
authors.initials: T
authors.lastname: Bavbek
authors.forename: Ozlem
authors.initials: O
authors.lastname: Yenice
authors.forename: Okan
authors.initials: O
authors.lastname: Toygar
mesh_terms: D000368:Aged; D000714:Anastomosis, Surgical / Q000379:methods*; D002829:Choroid / Q000098:blood supply*; D005451:Fluorescein Angiography; D006801:Humans; D053685:Laser Therapy / Q000379:methods*; D008875:Middle Aged; D011183:Postoperative Complications; D012169:Retinal Vein / Q000502:physiology* / Q000601:surgery; D012170:Retinal Vein Occlusion / Q000601:surgery*; D014680:Veins; D014792:Visual Acuity