title: Induction of retinochoroidal venous anastomosis in central retinal vein occlusion with macular edema via a full-thickness retinochoroidal incision.
abstract: OBJECTIVE
  To report the induction of retinochoroidal venous anastomosis (RCVA) in the treatment of nonischemic central retinal vein occlusion (CRVO) with macular edema via a full-thickness retinochoroidal incision.
  
  
  METHODS
  In nine eyes with nonischemic CRVO and intractable macular edema, one or two full-thickness incisions transacting a major retinal branch vein to the level of inner sclera were made in conjunction with vitrectomy. Fluorescein angiography was conducted to evaluate the formation of functional RCVA. Best-corrected visual acuity (BCVA) and central macular thickness (CMT) were compared before and after the surgery.
  
  
  RESULTS
  The mean follow-up period +/- SD was 12.0 +/- 5.1 months. All nine eyes developed functional RCVA after the surgery. The mean BCVA +/- SD improved from 0.75 +/- 0.30 logMAR (logarithm of the minimal angle of resolution) to 0.55 +/- 0.26 logMAR (P = 0.018), and the mean CMT +/- SD was reduced from 686 +/- 265 microm to 251 +/- 150 microm (P = 0.011). Additional surgery was performed on one eye due to persistent vitreous hemorrhage.
  
  
  CONCLUSIONS
  Full-thickness retinochoroidal incision appears to raise the rate of successful RCVA formation and may improve the outcome of CRVO with macular edema.
authors.affiliation: Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
authors.forename: Jae Hoon
authors.initials: JH
authors.lastname: Kang
authors.forename: Jae Hui
authors.initials: JH
authors.lastname: Kim
authors.forename: Jong In
authors.initials: JI
authors.lastname: Kim
authors.forename: Se Woong
authors.initials: SW
authors.lastname: Kang
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000714:Anastomosis, Surgical / Q000379:methods*; D002829:Choroid / Q000098:blood supply* / Q000601:surgery; D005260:Female; D005451:Fluorescein Angiography; D005500:Follow-Up Studies; D006801:Humans; D008269:Macular Edema / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012169:Retinal Vein / Q000601:surgery*; D012170:Retinal Vein Occlusion / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D041623:Tomography, Optical Coherence; D014792:Visual Acuity; D014821:Vitrectomy