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Understanding the Relationship Between the Neurologic Pupil Index and Constriction Velocity Values.

ABSTRACT: The pupillary light reflex (PLR) describes the response when light hits the retina and sends a signal (cranial nerve II) to the Edinger-Westphal Nucleus which via cranial nerve III results in pupillary constriction. The Neurological Pupil indexTM (NPi) and pupil constriction velocity (CV) are two distinct variables that can be observed and measured using a pupillometer. We examine NPi and CV in 27,462 pupil readings (1,617 subjects). NPi values <3.0 and a CV?

SUBMITTER: Shoyombo I 

PROVIDER: S-EPMC5934377 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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Understanding the Relationship Between the Neurologic Pupil Index and Constriction Velocity Values.

Shoyombo Ifeoluwa I   Aiyagari Venkatesh V   Stutzman Sonja E SE   Atem Folefac F   Hill Michelle M   Figueroa Stephen A SA   Miller Chad C   Howard Amber A   Olson DaiWai M DM  

Scientific reports 20180503 1

The pupillary light reflex (PLR) describes the response when light hits the retina and sends a signal (cranial nerve II) to the Edinger-Westphal Nucleus which via cranial nerve III results in pupillary constriction. The Neurological Pupil index<sup>TM</sup> (NPi) and pupil constriction velocity (CV) are two distinct variables that can be observed and measured using a pupillometer. We examine NPi and CV in 27,462 pupil readings (1,617 subjects). NPi values <3.0 and a CV < 0.8 mm/sec were consider  ...[more]

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