title: Electronystagmography versus videonystagmography.
abstract: Electronystagmography (ENG) and videonystagmography (VNG) are eye movement recording methods used for the evaluation of balance disorders.
  
  
  OBJECTIVE
  To compare literature information on the similarities, differences, advantages e disadvantages between ENG and VNG.
  
  
  METHODS
  review of the scientific literature.
  
  
  RESULTS
  ENG and VNG are very helpful methods for evaluating balance disorders, due to their capacity to recognize signs of peripheral or central vestibular dysfunction and to pinpoint the side of the lesion. Major advantages of VNG are related to calibration, temporospatial resolution, and recording of horizontal, vertical and torsional eye movements.
  
  
  CONCLUSIONS
  VNG is a new technology that presents advantages in the evaluation of eye movements; however, despite its disadvantages, ENG is still considered a valuable test in the clinical setting.
authors.affiliation: Paulista School of Medicine (UNIFESP-EPM), Sao Paulo Federal University, Sao Paulo, Brazil. mauricio.gananca@globo.com
authors.forename: Maurício Malavasi
authors.initials: MM
authors.lastname: Ganança
authors.forename: Heloísa Helena
authors.initials: HH
authors.lastname: Caovilla
authors.forename: Fernando Freitas
authors.initials: FF
authors.lastname: Ganança
mesh_terms: D004584:Electronystagmography / Q000295:instrumentation / Q000379:methods*; D004585:Electrooculography / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D012680:Sensitivity and Specificity; D015837:Vestibular Diseases / Q000175:diagnosis*; D014741:Video Recording