title: [Is cheating with automatic perimetry possible?].
abstract: BACKGROUND
  Automatic perimetry examination requires the patient's cooperation, but the programs used check response validity. This study evaluated the possibility of patient cheating on this examination.
  
  
  METHODS
  This study investigated 27 visual fields of automatic perimetry with patients who had no ophthalmological history. Each subject had to reproduce a visual field loss that was observed for 5 minutes (two diffuse losses, five fields reflecting hemianopsia, four reflecting quadranopsia, two tubular losses, five nasal steps, nine absolute and arciform losses). The 24-2 Fastpac of the Humphrey field analyzer and the G2 of the Octopus perimeter were used for this study.
  
  
  RESULTS
  Simple deficits were easy to reproduce, but visual field defects are often deeper and simulated test results tend to be too perfect. On the other hand, complex defects such as arciform scotoma or nasal steps were more difficult to reproduce. Visual field defect simulations were exaggerated beyond what was reasonable.
  
  
  CONCLUSIONS
  This study reports on whether it is possible to cheat with automatic perimetry. The different parameters analyzed by computer programs are not able to detect cheating patients.
authors.affiliation: Service d'Ophtalmologie 2, Hôpital des Quinze-Vingts, Paris.
authors.forename: T
authors.initials: T
authors.lastname: Rodallec
authors.forename: N
authors.initials: N
authors.lastname: Hamelin
authors.forename: C
authors.initials: C
authors.lastname: Blatrix
authors.forename: F
authors.initials: F
authors.lastname: Brion
authors.forename: C
authors.initials: C
authors.lastname: Mathieu
authors.forename: I
authors.initials: I
authors.lastname: Goemaere
authors.forename: J-P
authors.initials: JP
authors.lastname: Nordmann
mesh_terms: D000328:Adult; D001331:Automation / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014786:Vision Disorders / Q000175:diagnosis; D058609:Visual Field Tests / Q000379:methods*; D014794:Visual Fields