Relationship between age and pupil size

Relationship between age and pupil size, determined using an infrared flash photograph technique with subjects placed in darkness for 3 minutes. The numbers above the abscissa indicate the number of subjects tested in each age range. (Reprinted with permission of Loewenfeld IE: "Simple, central" anisocoria: A common condition, seldom recognized. Trans Am Acad Ophthalmol, American Academy of Ophthalmology, San Francisco, 1977;82:832-839.)Loewenfeld IE: "Simple, central" anisocoria: A common condition, seldom recognized. Trans Am Acad Ophthalmol, American Academy of Ophthalmology, San Francisco, 1977;82:832-839: http://www.ncbi.nlm.nih.gov/pubmed/929802; Loewenfeld IE: Pupillary changes related to age. In: Thompson HS, Daroff R, Frisen L, et al (eds.): Topics in Neuro-ophthalmology. Baltimore: Williams & Wilkins, 1979:124-150; Winn B, Whitaker D, Elliott DB, et al: Factors affecting light-adapted pupil size in normal human subjects. Invest Ophthalmol Vis Sci 1994;35:1132-1137: http://www.ncbi.nlm.nih.gov/pubmed?term=8125724curriculum_fellow; KBDmanagementofalargeorsmallpupil; KBDnormalpupillaryresponses; KBDmanagementofanisocoria; KBDpupillarypathologyphysiologicanisocori