Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1985;59(3):485-90.
doi: 10.1007/BF00261338.

The relationship between feline pupil size and luminance

P Hammond, G S Mouat

The relationship between feline pupil size and luminance

P Hammond et al. Exp Brain Res. 1985.

Abstract

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.

PubMed Disclaimer

References

    1. J Opt Soc Am. 1969 Jan;59(1):103-7 - PubMed
    1. Exp Brain Res. 1981;43(3-4):422-8 - PubMed
    1. Vision Res. 1963 Nov;61:357-81 - PubMed
    1. J Physiol. 1974 Oct;242(1):99-118 - PubMed
    1. Vision Res. 1978;18(2):233-5 - PubMed

Publication types

LinkOut - more resources