title: [Evaluation of age-related pupil constriction in pupil perimetry].
abstract: OBJECTIVE
  To investigate the possibility of assessing pupil perimetry by evaluating pupil constriction in association with age in healthy persons.
  
  
  METHODS
  A total of 90 healthy persons, aged 18 to 59 years, were enrolled in this study. The percentage of pupil constriction for each of the 76 points was evaluated, in addition to which pupil constriction for 4 specific areas within the total 76 points (center 16, middle 20, peripheral 24, and most peripheral 16) were also studied.
  
  
  RESULTS
  Percentage of pupil constriction at each point was approximately 25%. Pupil miosis has hardly changed with age. There was, however, a steep decline in the percentage of pupil constriction from the center to the periphery of the pupil field.
  
  
  CONCLUSIONS
  The current study demonstrates that standard values can be obtained using pupil perimetry. Additional studies are needed to evaluate the specificity and sensitivity of this technique.
authors.affiliation: Department of Ophthalmology and Visual Science, Kitasato University Graduate School, Doctors Program of Medical Science. 1-15-1, Kitasato, Sagamihara-shi, Kanagawa-ken 228-8555, Japan. dm07002u@st.kitasato-u.ac.jp
authors.forename: Ken
authors.initials: K
authors.lastname: Asakawa
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Shoji
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Ishikawa
authors.forename: Akihiro
authors.initials: A
authors.lastname: Tanakadate
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015877:Miosis; D011680:Pupil / Q000502:physiology*; D058609:Visual Field Tests