title: Visual field indexes for version 3.0 of frequency doubling perimetry in patients with glaucoma.
abstract: OBJECTIVE
  A new version of frequency doubling perimetry was compared to a former version in patients with glaucoma.
  
  
  METHODS
  Prospective observational study.
  
  
  METHODS
  Thirty-two patients with glaucoma were examined twice sequentially in one eye with threshold c-20 of frequency doubling perimetry version 2.6. Within 3 months, the same eye was again examined twice sequentially, this time using the new version 3.0. Mean deviation, pattern standard deviation, short-term fluctuation, intraocular pressure at examination, and test duration were compared between versions.
  
  
  RESULTS
  No significant difference was found in mean deviation, pattern standard deviation, intraocular pressure, or short-term fluctuation between versions.
  
  
  CONCLUSIONS
  Version 3.0 took less time to perform the threshold test than did version 2.6. Version 3.0 of the frequency doubling perimetry program took less time to perform and showed similar values of visual field indexes when compared with version 2.6.
authors.affiliation: Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, Chiba, Japan.
authors.forename: Da Wei
authors.initials: DW
authors.lastname: Zhang
authors.forename: Katsuyuki
authors.initials: K
authors.lastname: Minowa
authors.forename: Tadao
authors.initials: T
authors.lastname: Hanawa
authors.forename: Naoya
authors.initials: N
authors.lastname: Fujimoto
authors.forename: Kazuhide
authors.initials: K
authors.lastname: Tsukamoto
authors.forename: Emiko
authors.initials: E
authors.lastname: Adachi-Usami
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005901:Glaucoma / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012984:Software; D014786:Vision Disorders / Q000175:diagnosis*; D058609:Visual Field Tests / Q000379:methods*; D014794:Visual Fields