Results 31 to 40 of about 18,366 (304)

Fixed Pupillary Light Reflex due to Peripheral Neuropathy after Liver Transplantation [PDF]

open access: yesKorean Journal of Critical Care Medicine, 2015
A 46-year-old female patient was admitted to the intensive care unit (ICU) after liver transplantation. About an hour later after the ICU admission, she had no pupillary light reflex. Both pupils were also fixed at 5 mm.
Kwan Hyung Kim   +4 more
doaj   +1 more source

Searching for Complexity in the Human Pupillary Light Reflex

open access: yesMathematics, 2020
This article aims to examine the dynamical characteristics of the pupillary light reflex and to provide a contribution towards their explanation based on the nonlinear theory of dynamical systems.
Rosário D. Laureano   +3 more
doaj   +1 more source

An Innovative Technique to Evaluate Quantitative Pupillary Light Reflex by Dynamic Pupillometry using Infrared Videography [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2019
Introduction: An innovative approach was designed to quantify the pupillary light reflex using infrared and white light illumination. This method is convenient to detect pupil edges, area and the diameter of pupil contour recorded in different ambient ...
AV Siva kumar   +4 more
doaj   +1 more source

Understanding the effects of mild traumatic brain injury on the pupillary light reflex

open access: yesConcussion, 2017
The pupillary light reflex represents an optimal visual system to investigate and exploit in the mild traumatic brain injury (mTBI) population. Static and dynamic aspects of the pupillary light reflex were investigated objectively and quantitatively in ...
Kenneth J Ciuffreda   +2 more
doaj   +2 more sources

The pupillary light reflex distinguishes between circadian and non-circadian delayed sleep phase disorder (DSPD) phenotypes in young adults. [PDF]

open access: yesPLoS ONE, 2018
This study investigated the utility of the pupillary light reflex as a method of differentiating DSPD patients with delayed melatonin timing relative to desired/required sleep time (circadian type) and those with non-delayed melatonin timing (non ...
Elise M McGlashan   +6 more
doaj   +1 more source

Pupillary Light Reflex

open access: yes
Belliveau AP, Somani AN, Dossani RH.
europepmc   +2 more sources

RdgB2 is required for dim-light input into intrinsically photosensitive retinal ganglion cells. [PDF]

open access: yes, 2015
A subset of retinal ganglion cells is intrinsically photosensitive (ipRGCs) and contributes directly to the pupillary light reflex and circadian photoentrainment under bright-light conditions.
Berson, David M   +8 more
core   +2 more sources

The pupillary light response reveals the focus of covert visual attention. [PDF]

open access: yesPLoS ONE, 2013
The pupillary light response is often assumed to be a reflex that is not susceptible to cognitive influences. In line with recent converging evidence, we show that this reflexive view is incomplete, and that the pupillary light response is modulated by ...
Sebastiaan Mathôt   +3 more
doaj   +1 more source

Consensual Pupillometry for robotic emotional recognition [PDF]

open access: yes, 2015
The main contribution of this research is to develop of a new measuring device for measuring direct- and consensual light reflex of human pupil. In this case the pupillary light reflex means changing of diameter of pupil due to constant light stimulus as
Fekete, Róbert Tamás   +2 more
core   +1 more source

Increased pupillary constriction velocity in benign essential blepharospasm associated with photophobia.

open access: yesPLoS ONE, 2019
We evaluated whether the pupillary light reflex is altered in benign essential blepharospasm patients. Twenty-three patients with benign essential blepharospasm, 47 with reflex blepharospasm, and 29 dry eye disease controls were included. Pupillary light
Yong-Soo Byun   +3 more
doaj   +1 more source

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