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Book

Pupillary Light Reflex

Alison P. Belliveau  1 , Anisha N. Somani  2 , Rimal H. Dossani  3
In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
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Book

Pupillary Light Reflex

Alison P. Belliveau et al.
Free Books & Documents

Excerpt

Eyes allow for visualization of the world by receiving and processing light stimuli. The pupillary light reflex constricts the pupil in response to light, and pupillary constriction is achieved through the innervation of the iris sphincter muscle.

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Conflict of interest statement

Disclosure: Alison Belliveau declares no relevant financial relationships with ineligible companies.

Disclosure: Anisha Somani declares no relevant financial relationships with ineligible companies.

Disclosure: Rimal Dossani declares no relevant financial relationships with ineligible companies.

References

    1. Shumway CL, Motlagh M, Wade M. StatPearls [Internet] StatPearls Publishing; Treasure Island (FL): 2022. Oct 13, Anatomy, Head and Neck, Eye Extraocular Muscles. - PubMed
    1. Smith AM, Czyz CN. StatPearls [Internet] StatPearls Publishing; Treasure Island (FL): 2022. Nov 7, Neuroanatomy, Cranial Nerve 2 (Optic) - PubMed
    1. Nozaki K, Kamiya K, Matsue Y, Hamazaki N, Matsuzawa R, Tanaka S, Maekawa E, Kishi T, Matsunaga A, Masuda T, Izumi T, Ako J. Pupillary Light Reflex as a New Prognostic Marker in Patients With Heart Failure. J Card Fail. 2019 Mar;25(3):156-163. - PubMed
    1. Ciuffreda KJ, Joshi NR, Truong JQ. Understanding the effects of mild traumatic brain injury on the pupillary light reflex. Concussion. 2017 Nov;2(3):CNC36. - PMC - PubMed
    1. Lynch G. Using Pupillometry to Assess the Atypical Pupillary Light Reflex and LC-NE System in ASD. Behav Sci (Basel) 2018 Nov 21;8(11) - PMC - PubMed

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