The normal pupillary light reflex

Identifier Figure-06
Title The normal pupillary light reflex
Subject Reflex, Pupillary; Examination, Pupillary
Description The normal pupillary light reflex is initiated following exposure to light. After a brief latency, both the right (solid line) and left (broken line) pupil constrict, then undergo a small amount of redilation (escape), followed by oscillations (hippus) if the light is sustained. Hippus is not a pathologic sign. (Corbett JJ, Thompson HS: Pupillary function and dysfunction. In Asbury AK, McKhann GM, McDonald WI [eds.]: Diseases of the Nervous System. Clinical Neurobiology, p 607. Vol 1. Philadelphia: WB Saunders, 1986 with permission.)
Creator Daniel M. Jacobson, MD (1956-2003)
References Asbury AK, McKhann GM, McDonald WI [eds.]: Diseases of the Nervous System. Clinical Neurobiology, p 607. Vol 1. Philadelphia: WB Saunders, 1986; Lowenstein O, Kawabata H, Loewenfeld IE: The pupil as indicator of retinal activity. Am J Ophthalmol 1964;57:569-596: http://www.ncbi.nlm.nih.gov/pubmed?term=14139299; Lowenstein O, Loewenfeld IE: Influence of retinal adaptation upon the pupillary reflex to light in normal man. Part I. Effect of adaptation to bright light on the pupillary threshold. Am J Ophthalmol 1959;48:536-549: http://www.ncbi.nlm.nih.gov/pubmed/14418555; Lowenstein O, Loewenfeld IE: Influence of retinal adaptation upon the pupillary reflex to light in normal man. Part II. Effect of adaptation to dim illumination upon pupillary reflexes elicited by bright light. Am J Ophthalmol 1961;51:644-654: http://www.ncbi.nlm.nih.gov/pubmed/13763835
Publisher Spencer S. Eccles Health Sciences Library, University of Utah
Type Image/StillImage
Format image/jpeg
Relation is Part of The Pupil: Neurology of the Iris
Rights Management Copyright 2002. For further information regarding the rights to this collection, please visit http://library.med.utah.edu/NOVEL/about/copyright
Collection Neuro-ophthalmology Virtual Education Library: NOVEL http://NOVEL.utah.edu
Language eng
ARK ark:/87278/s69c9vpt
Setname ehsl_novel_jmec
Date Created 2011-04-19
Date Modified 2012-04-12
ID 180378
Reference URL https://collections.lib.utah.edu/details?id=180378
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