title: Visual field loss after pars plana vitrectomy with air/fluid exchange.
abstract: OBJECTIVE
  To report the postoperative finding of a dense, permanent, peripheral temporal visual field defect in the treated eyes of three patients who underwent pars plana vitrectomy with air/fluid exchange.
  
  
  METHODS
  The patient's charts were reviewed.
  
  
  RESULTS
  Visual field loss after pars plana vitrectomy and air/fluid exchange occurs and may be caused by mechanical trauma to the optic nerve head.
  
  
  CONCLUSIONS
  Great caution is advised when aspirating directly over the optic nerve with any extrusion instrument.
authors.affiliation: Retina Consultants, Ltd., St. Louis, MO 63110, USA.
authors.forename: N S
authors.initials: NS
authors.lastname: Melberg
authors.forename: M A
authors.initials: MA
authors.lastname: Thomas
mesh_terms: D000328:Adult; D000388:Air; D005260:Female; D005654:Fundus Oculi; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D008875:Middle Aged; D009898:Optic Disk / Q000293:injuries; D015861:Retinal Neovascularization / Q000601:surgery; D012167:Retinal Perforations / Q000601:surgery; D012996:Solutions; D014786:Vision Disorders / Q000209:etiology*; D014792:Visual Acuity; D014794:Visual Fields; D014821:Vitrectomy / Q000009:adverse effects*
chemical_list: D012996:Solutions