Understanding the Relationship Between the Neurologic Pupil Index and Constriction Velocity Values.
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ABSTRACT:
SUBMITTER: Shoyombo I
PROVIDER: S-EPMC5934377 | biostudies-literature | 2018 May
REPOSITORIES: biostudies-literature
Publications
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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