About The Medical Condition Tonic Pupil

Find the definition of the medical term Tonic Pupil. Tonic Pupil defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Tonic Pupil

Tonic Pupil Medical Condition |
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What's The Definition Of The Medical Condition Tonic Pupil?
A pupillary abnormality characterized by a poor pupillary light reaction, reduced accommodation, iris sector palsies, an enhanced pupillary response to near effort that results in a prolonged, "tonic" constriction, and slow pupillary redilation. This condition is associated with injury to the postganglionic parasympathetic innervation to the pupil. (From Miller et al., Clinical Neuro-Ophthalmology, 4th ed, pp492-500)
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