title: Optical coherence tomography evaluation of macular edema after radial optic neurotomy in patients affected by central retinal vein occlusion.
abstract: OBJECTIVE
  To evaluate the characteristics of macular edema (ME) before and after radial optic neurotomy (RON) detected by optical coherence tomography (OCT), in patients with central retinal vein occlusion (CRVO).
  
  
  METHODS
  Interventional case series.
  
  
  METHODS
  Five eyes of 5 patients affected by CRVO underwent RON. Complete ocular examination including best corrected snellen visual acuity (VA), fluorescein angiography (FA) and OCT were performed before RON and at 1, 3 and 6 months of follow-up.
  
  
  RESULTS
  The OCT characteristics of macular edema are similar in all the eyes affected by CRVO. Mean retinal thickness (RT) before RON was 858 microns, mean VA was 20/640. By FA 3 eyes were evaluated as being perfused and 2 as indeterminate. No complications occurred during and after surgery. At 6 months of follow-up the RT decreased in all the patients (100%) with a mean value of 289 microns. The VA increased in 3 patients and remained stable in 2.
  
  
  CONCLUSIONS
  OCT demonstrated resolution of the macular edema in all the eyes. This resolution is not always accompanied with an improvement in VA. Further studies are needed to better understand the efficacy of this procedure.
authors.affiliation: Department of Ophthalmology, Villa Tiberia Hospital, Via Emilio Praga, Rome, Italy. f.patelli@tiscali.it
authors.forename: Fabio
authors.initials: F
authors.lastname: Patelli
authors.forename: Paolo
authors.initials: P
authors.lastname: Radice
authors.forename: Giulio
authors.initials: G
authors.lastname: Zumbo
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Fasolino
authors.forename: Stefano
authors.initials: S
authors.lastname: Marchi
mesh_terms: D000368:Aged; D019299:Decompression, Surgical; D005451:Fluorescein Angiography; D005500:Follow-Up Studies; D006801:Humans; D008269:Macular Edema / Q000175:diagnosis* / Q000209:etiology; D009898:Optic Disk / Q000601:surgery*; D011446:Prospective Studies; D012170:Retinal Vein Occlusion / Q000150:complications / Q000601:surgery*; D041623:Tomography, Optical Coherence / Q000379:methods*; D016896:Treatment Outcome