Experimental Brain Research

, Volume 59, Issue 3, pp 485–490 | Cite as

The relationship between feline pupil size and luminance

  • P. Hammond
  • G. S. V. Mouat


The relationships between luminance and height, width or area of the feline pupil were investigated in awake, normal adult cats whose pupils were photographed over a range of light levels with the aid of electronic flash. The results are compared with previous measurements of pupil width and height in awake animals (Kappauf 1943); and with estimates of pupil width, height and area in lightly-anaesthetised cats (Wilcox and Barlow 1975). The implications of these results for retinal illumination and colour discrimination are discussed.

Key words

Vision Cat Pupil dimensions Luminance 


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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • P. Hammond
    • 1
  • G. S. V. Mouat
    • 1
  1. 1.Department of Communication and NeuroscienceUniversity of KeeleKeeleUK

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