Results 11 to 20 of about 416,062 (330)

Review on age-related differences in non-visual effects of light: melatonin suppression, circadian phase shift and pupillary light reflex in children to older adults

open access: yesJournal of Physiological Anthropology, 2023
Physiological effects of light exposure in humans are diverse. Among them, the circadian rhythm phase shift effect in order to maintain a 24-h cycle of the biological clock is referred to as non-visual effects of light collectively with melatonin ...
Taisuke Eto, S. Higuchi
semanticscholar   +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

A simple Maxwellian optical system to investigate the photoreceptors contribution to pupillary light reflex

open access: yesBiOS, 2022
The three classes of photoreceptors cones, rods, and intrinsically photosensitive retinal ganglion cells (ipRGCs) contribute to the pupillary light reflex (PLR).
G. Gibertoni   +5 more
semanticscholar   +1 more source

Etiology of white pupillary reflex in pediatric age group

open access: yesRomanian Journal of Ophthalmology, 2022
Background: Leukocoria means white pupil. Normal pupil appears black in children and adults. The typical red reflex is due to retro-illumination of choroidal vessels reflected via the retina, vitreous humor, crystalline lens, aqueous humor, pupil, and ...
Muhammad Israr   +4 more
semanticscholar   +1 more source

PyPlr: A versatile, integrated system of hardware and software for researching the human pupillary light reflex

open access: yesbioRxiv, 2021
We introduce PyPlr—a versatile, integrated system of hardware and software to support a broad spectrum of research applications concerning the human pupillary light reflex (PLR).
Joel T. Martin   +3 more
semanticscholar   +1 more source

Development of the pupillary light reflex from 9 to 24 months: association with common autism spectrum disorder (ASD) genetic liability and 3-year ASD diagnosis.

open access: yesJournal of Child Psychology and Psychiatry and Allied Disciplines, 2021
BACKGROUND Although autism spectrum disorder (ASD) is heritable, the mechanisms through which genes contribute to symptom emergence remain unclear. Investigating candidate intermediate phenotypes such as the pupillary light reflex (PLR) prospectively ...
L. Fish   +13 more
semanticscholar   +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 (PLR) as a marker for the ability to work or drive – a feasibility study

open access: yesJournal of occupational medicine and toxicology, 2021
Background The PLR (pupillary light reflex) can be a marker for pathological medical conditions, such as neurodegenerative or mental health disorders and diseases as well as marker for physiological alterations, such as age, sex or iris color.
A. Kaifie   +3 more
semanticscholar   +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

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