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Book

Anisocoria

William N. Payne  1 , Kyle Blair  2 , Michael J. Barrett  3
In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
.
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Book

Anisocoria

William N. Payne et al.
Free Books & Documents

Excerpt

Anisocoria is a term derived from two Greek words, “aniso-” meaning unequal, “kore” meaning pupil, and a Latin suffix “ia” meaning abnormal condition. Anisocoria is characterized by a difference in pupil sizes. This phenomenon results due to disturbances in the efferent pathway dynamics. It can be physiological as well as pathological, occurring due to numerous causes, ranging from benign to life-threatening. This article highlights the neurological as well as the ophthalmological aspects of this condition.

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Conflict of interest statement

Disclosure: William Payne declares no relevant financial relationships with ineligible companies.

Disclosure: Kyle Blair declares no relevant financial relationships with ineligible companies.

Disclosure: Michael Barrett declares no relevant financial relationships with ineligible companies.

References

    1. Antonio-Santos AA, Santo RN, Eggenberger ER. Pharmacological testing of anisocoria. Expert Opin Pharmacother. 2005 Oct;6(12):2007-13. - PubMed
    1. George AS, Abraham AP, Nair S, Joseph M. The Prevalence of Physiological Anisocoria and its Clinical Significance - A Neurosurgical Perspective. Neurol India. 2019 Nov-Dec;67(6):1500-1503. - PubMed
    1. Belliveau AP, Somani AN, Dossani RH. StatPearls [Internet] StatPearls Publishing; Treasure Island (FL): 2023. Jul 25, Pupillary Light Reflex. - PubMed
    1. Lykstad J, Reddy V, Hanna A. StatPearls [Internet] StatPearls Publishing; Treasure Island (FL): 2023. Aug 8, Neuroanatomy, Pupillary Dilation Pathway. - PubMed
    1. Fierz FC, Gerth-Kahlert C. Long-Term Follow-Up in Children with Anisocoria: Cocaine Test Results and Patient Outcome. J Ophthalmol. 2017;2017:7575040. - PMC - PubMed

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