title: Comparison of optic disc image assessment methods when examining serial photographs for glaucomatous progression.
abstract: OBJECTIVE
  To assess serial, simultaneous stereo optic disc images by four methods for glaucomatous progression.
  
  
  METHODS
  Using varying techniques, two ophthalmologists assessed serial optic disc images of 52 eyes from 27 patients with a mean duration between images of 18 months. The neuroretinal rim width was qualitatively assessed by four assessment methods and compared with quantitative rim measurements made using PC based software.
  
  
  RESULTS
  The highest sensitivity of 83% was achieved using computerised stereo chronoscopy.
  
  
  CONCLUSIONS
  Stereo chronoscopy improved the detection of subtle optic disc changes when compared with simpler assessment techniques.
authors.affiliation: Centre for Ophthalmology and Visual Science, The University of Western Australia, Lions Eye Institute, Nedlands, Perth, Western Australia.
authors.forename: C J
authors.initials: CJ
authors.lastname: Barry
authors.forename: R
authors.initials: R
authors.lastname: Eikelboom
authors.forename: Y
authors.initials: Y
authors.lastname: Kanagasingam
authors.forename: L
authors.initials: L
authors.lastname: Jitskaia
authors.forename: W
authors.initials: W
authors.lastname: Morgan
authors.forename: P
authors.initials: P
authors.lastname: House
authors.forename: M
authors.initials: M
authors.lastname: Cuypers
mesh_terms: D018450:Disease Progression; D005901:Glaucoma / Q000473:pathology*; D006801:Humans; D009898:Optic Disk / Q000473:pathology*; D010781:Photography; D012680:Sensitivity and Specificity