title: [Night visual function of glaucoma patients with good photopic vision].
abstract: OBJECTIVE
  To measure night visual function of glaucoma patients with good photopic vision.
  
  
  METHODS
  Patients aged 30-59 years who were diagnosed with glaucoma in the outpatient clinic of Nara Medical University, and showed a corrected visual acuity of > or = 1.0 in both eyes. The patients were classified using static threshold perimetry with a Humphrey field analyzer into two groups, with a mean deviation of -6 dB or better (early-stage glaucoma group) or a mean deviation worse than -6dB (intermediate/late-stage glaucoma group), and night visual function was measured. In addition, the patients were compared with normal controls without eye disease other than refractive error.
  
  
  RESULTS
  The early-stage glaucoma group included 26 patients, and the intermediate/late-stage glaucoma group included 22 patients. There were 23 controls. Night visual function differed among the 3 groups. With the progression of visual field defects, the night visual function decreased.
  
  
  CONCLUSIONS
  These results suggest that night visual function can be used as a new parameter for the evaluation of visual function in glaucoma patients.
authors.affiliation: Yukawa Eye Clinic y-eiichi@kzf.biglobe.ne.jp
authors.forename: Eiichi
authors.initials: E
authors.lastname: Yukaw
authors.affiliation: Department of Health and Social Services, Osaka University of Human Sciences.
authors.forename: Kozo
authors.initials: K
authors.lastname: Masuda
authors.affiliation: Department of Ophthalmology, Nara Medical University.
authors.forename: Toyoaki
authors.initials: T
authors.lastname: Matsuura
authors.affiliation: Department of Ophthalmology, Nara Medical University.
authors.forename: Nahoko
authors.initials: N
authors.lastname: Ogata
mesh_terms: D000221:Adaptation, Ocular / Q000502:physiology; D000328:Adult; D055253:Color Vision / Q000502:physiology*; D003623:Dark Adaptation / Q000502:physiology; D005260:Female; D005901:Glaucoma / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D055254:Night Vision / Q000502:physiology*; D014794:Visual Fields / Q000502:physiology