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tonic pupil


Definition: a general term for a pupil with delayed, slow, long-lasting contractions to light and to a near vision effort, often with light-near dissociation; due to denervation and aberrant reinnervation of the iris sphincter; seen in various autonomic neuropathies and in Adie syndrome.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.