Static and kinetic properties of the dolphin pupil

Autor:	C. A. Litzkow, W. W. Dawson, M. C. Barris, C. K. Adams
Rok vydání:	1979
Předmět:	Communication Light Adaptation Ocular Physiology business.industry Dolphins Pupil Adaptation (eye) Ellipse Kinetic energy Kinetics Optics Physiology (medical) Pupillary response Animals business Vision Ocular Mathematics
Zdroj:	American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 237:R301-R305
ISSN:	1522-1490 0363-6119
Popis:	In dim illumination, adult human pupil area becomes asymptotic at about 51 mm2 whereas the dolphin pupil achieves an area of about 70 mm2 under equivalent conditions. At moderate illumination levels (greater than 100 lx), the dolphin pupil becomes a horizontally oriented ellipse and develops a pronounced central constriction with additional light. The relative relationship between pupil area and illumination copmares closely with published human data. Rates of pupil response to step increments in illumination are very similar for the two species. Although the pupil has been proposed as a mechanism for correction of the dolphins' high aerial myopia, correlation of the laboratory findings on static and kinetic pupil properties with visually controlled aerial behaviors disclosed no special interdependence.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a607c4cbd794938a4ed48ea66a256447 https://doi.org/10.1152/ajpregu.1979.237.5.r301 Zobrazit plný text záznamu