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. 1985;59(3):485-90.
doi: 10.1007/BF00261338.

The Relationship Between Feline Pupil Size and Luminance

The Relationship Between Feline Pupil Size and Luminance

P Hammond et al. Exp Brain Res. .


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.

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