Results 1 to 10 of about 21,624 (285)

Sonographic Consensual Pupillary Reflex [PDF]

open access: yesWestern Journal of Emergency Medicine, 2012
Patients suffering from severe orbital trauma are at risk for numerous complications, including orbital compartment syndromes. This can result in an afferent pupillary defect, which must be evaluated for on physical examination.
Jeffrey Wiswell   +1 more
doaj   +7 more sources

PUPILLARY REFLEX AT EASE: A new instrument for the demonstration of Pupillary reflex [PDF]

open access: yesIndian Journal of Ophthalmology
As ophthalmologists, we often come across a lot of patients with neuro-ophthalmological disorders that show no positive examination findings except for subtle abnormalities in the pupillary light reflex. However, these subtle changes are often overlooked
Allapitchai Fathima   +3 more
doaj   +3 more sources

Quantitative assessments of pupillary light reflexes in neurocritically ill patients [PDF]

open access: yesJournal of Neurocritical Care, 2022
The pupillary light reflex is a component of bedside neurological examinations in neurological intensive care units (neuroICUs). A quantitative pupillometer provides a non-invasive and objective pupil reactivity parameter clinically significant for ...
Tae Jung Kim
doaj   +1 more source

Pupil tracks statistical regularities: behavioral and neural implications [PDF]

open access: yesJournal of Integrative Neuroscience, 2020
Pupillary light reflex adjusts the amount of light reaching the retina. Recent work suggests that the brainstem pupillary light reflex pathway is controlled by the environment's internal models derived from higher-order temporal statistics.
Shamini Warda, Shubham Pandey
doaj   +1 more source

Gaze-contingent flicker pupil perimetry detects scotomas in patients with cerebral visual impairments or glaucoma [PDF]

open access: yes, 2018
The pupillary light reflex is weaker for stimuli presented inside as compared to outside absolute scotomas. Pupillograph perimetry could thus be an objective measure of impaired visual processing.
Bergsma, Douwe P   +6 more
core   +10 more sources

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

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

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

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

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

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