Tonic Pupil

Matthew J. Thurtell, Robert L. Tomsak and Robert B. Daroff

in Neuro-Ophthalmology

Published on behalf of Oxford University Press

Published in print October 2011 | ISBN: 9780195390841
Published online April 2013 | e-ISBN: 9780199322893 | DOI:

Series: What Do I Do Now

Tonic Pupil

Show Summary Details


A tonic pupil is caused by a lesion affecting the postganglionic parasympathetic innervation of the pupil. It can be an incidental finding on examination or associated with visual symptoms, such as photophobia or blurred vision at near. We discuss the common causes and diagnostic evaluation of a tonic pupil in this chapter.

Chapter.  1123 words. 

Subjects: Neurology

Full text: subscription required

How to subscribe Recommend to my Librarian

Buy this work at Oxford University Press »

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.