The Tadpole Pupil: Case Series With Review of the Literature and New Considerations.

Details

Serval ID
serval:BIB_2025FB0BB0DA
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
The Tadpole Pupil: Case Series With Review of the Literature and New Considerations.
Journal
Frontiers in neurology
Author(s)
Udry M., Kardon R.H., Sadun F., Kawasaki A.
ISSN
1664-2295 (Print)
ISSN-L
1664-2295
Publication state
Published
Issued date
2019
Peer-reviewed
Oui
Volume
10
Pages
846
Language
english
Notes
Publication types: Case Reports
Publication Status: epublish
Abstract
Tadpole pupil is a rare phenomenon in which segmental spasm of the iris dilator muscle results in a tadpole-shaped pupil. The pupillary distortion is usually unilateral, lasts several minutes, and can recur in clusters. Any segment of the iris can be affected; thus, for some patients, a different-shaped tadpole pupil is noticed from episode to episode. Tadpole pupil most commonly appears spontaneously in young women. Tadpole pupil is not associated with any systemic disorders, but an ipsilateral Horner syndrome is noted in 46% of patients. In this article, we have reviewed the existing literature of tadpole pupil, compiling all the published cases in a table and reporting four additional cases to re-examine the clinical profile of this disorder and to consider the different purported mechanisms as means to understand its possible etiology and treatment. The common denominator in the pathophysiology of tadpole pupil is a focal excessive contraction (segmental spasm) of the iris dilator muscle. Based on various proposed pathophysiologic mechanism of tadpole pupil, we can consider potential forms of treatment.
Keywords
Horner syndrome, iris dilator muscle, mydriasis, pupil, pupillary distortion, tadpole pupil
Pubmed
Web of science
Open Access
Yes
Create date
16/07/2020 11:56
Last modification date
17/07/2020 6:26
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