title: INCIDENCE OF AND RISK FACTORS FOR DISSOCIATED OPTIC NERVE FIBER LAYER AFTER EPIRETINAL MEMBRANE SURGERY.
abstract: OBJECTIVE
  To investigate the incidence of and risk factors for a dissociated optic nerve fiber layer (DONFL) after epiretinal membrane surgery.
  
  
  METHODS
  Two hundred and ninety-six primary pars plana vitrectomy operations for epiretinal membrane that were eligible for inclusion in the study. All patients received a complete ophthalmologic examination and color fundus photography, optical coherence tomography preoperatively and postoperatively. DONFL group and non-DONFL group was compared. Univariate and multivariate analyses were performed to establish the risk factors for DONFL.
  
  
  RESULTS
  A DONFL developed in 30 of the 296 eyes (incidence, 10.1%). Internal limiting membrane (ILM) peeling was performed in 29 of 30 eyes (96.7%) in the DONFL group and 126 of 266 eyes (47.4%) in the control group (P < 0.001). Intravitreal gas tamponade was performed in 21 eyes (70.0%) in the DONFL group and 133 eyes (50.0%) in the control group (P = 0.038). The ILM peeling (odds ratio, 32.22 [4.33-240.0]; P = 0.001) and intravitreal gas tamponade (odds ratio, 2.33 [1.03-5.28]; P = 0.042) were significantly associated with DONFL.
  
  
  CONCLUSIONS
  It was found that ILM peeling and intravitreal gas tamponade were correlated with postoperative DONFL. The ILM peeling with intravitreal gas tamponade was more strongly correlated with postoperative DONFL formation than was ILM peeling alone.
authors.affiliation: Department of Ophthalmology, Soonchunhyang University College of Medicine, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea.
authors.forename: Sun Ho
authors.initials: SH
authors.lastname: Park
authors.forename: Yong Joon
authors.initials: YJ
authors.lastname: Kim
authors.forename: Sung Jin
authors.initials: SJ
authors.lastname: Lee
mesh_terms: D000368:Aged; D004396:Coloring Agents / Q000008:administration & dosage; D058450:Endotamponade; D019773:Epiretinal Membrane / Q000601:surgery*; D005260:Female; D005466:Fluorocarbons / Q000008:administration & dosage; D006801:Humans; D015994:Incidence; D007208:Indocyanine Green / Q000008:administration & dosage; D008297:Male; D008875:Middle Aged; D009412:Nerve Fibers / Q000473:pathology*; D009900:Optic Nerve / Q000473:pathology*; D009901:Optic Nerve Diseases / Q000175:diagnosis / Q000453:epidemiology*; D011183:Postoperative Complications; D012307:Risk Factors; D013459:Sulfur Hexafluoride / Q000008:administration & dosage; D041623:Tomography, Optical Coherence; D014792:Visual Acuity / Q000502:physiology; D014821:Vitrectomy
chemical_list: D004396:Coloring Agents; D005466:Fluorocarbons; C042852:perflutren; D007208:Indocyanine Green; D013459:Sulfur Hexafluoride