Results 11 to 20 of about 17,532 (204)

Pupillary light reflex in ethambutol-induced optic neuropathy [PDF]

open access: yesScientific Reports, 2020
We evaluated changes in the pupillary light reflex (PLR) of ethambutol (EMB)-induced optic neuropathy and analyzed the correlations between PLR parameters and other structural changes in EMB-induced optic neuropathy.
Yung-Ju Yoo   +2 more
doaj   +5 more sources

Pupillary light reflex of lamprey Petromyzon marinus. [PDF]

open access: yesCurr Biol, 2021
The discoveries of the photopigment melanopsin and intrinsically photosensitive retinal ganglion cells (ipRGCs) have revealed novel mechanisms of light detection now known to control several kinds of non-image-forming vision, including regulation of mood, the circadian rhythm, and the pupillary light reflex (PLR). These remarkable discoveries have been
Morshedian A   +4 more
europepmc   +6 more sources

The Pupillary Light Reflex as a Biomarker of Concussion [PDF]

open access: yesLife, 2021
The size of our pupils changes continuously in response to variations in ambient light levels, a process known as the pupillary light reflex (PLR). The PLR is not a simple reflex as its function is modulated by cognitive brain function and any long-term ...
Frederick Robert Carrick   +7 more
doaj   +2 more sources

Pupillary Light Reflex Induced by Two-Photon Vision. [PDF]

open access: yesInvest Ophthalmol Vis Sci, 2021
Two-photon vision relies on the perception of pulsed infrared light due to two-photon absorption in visual pigments. This study aimed to measure human pupil reaction caused by a two-photon 1040-nm stimulus and compare it with pupil responses elicited by 520-nm stimuli of similar color.Pupillary light reflex (PLR) was induced on 14 dark-adapted healthy ...
Zielinska A   +3 more
europepmc   +3 more sources

A Novel Method for Measuring the Pupil Diameter and Pupillary Light Reflex of Healthy Volunteers and Patients With Intracranial Lesions Using a Newly Developed Pupilometer [PDF]

open access: yesFrontiers in Medicine, 2021
Background: Physicians currently measure the pupil diameter and the pupillary light reflex with visual observations using a ruler and a traditional penlight, leading to possibly inaccurate and subjective assessments.
Joji Kotani   +7 more
doaj   +2 more sources

Correlation between orbital imaging features of thyroid-associated ophthalmopathy and pupillary light reflex measurement [PDF]

open access: yesFrontiers in Medicine
PurposeThis study aimed to assess the factors associated with quantitative pupillary light reflex analysis and orbital magnetic resonance imaging (MRI) indicators in thyroid-associated ophthalmopathy (TAO) patients with different TAO severities, and ...
Yongran Li   +5 more
doaj   +2 more sources

Evaluation of Pupillary Light Reflex in Amblyopic Eyes Using Dynamic Pupillometry [PDF]

open access: yesTürk Oftalmoloji Dergisi, 2019
Objectives:To evaluate the pupillary light reflex responses in patients with unilateral strabismic and anisometropic amblyopia using dynamic pupillometry.Materials and Methods:A total of 102 eyes of 51 patients with unilateral amblyopia were included in ...
Gülfidan Bitirgen   +2 more
doaj   +2 more sources

Can the Pupillary Light Reflex and Pupillary Unrest Be Used as Biomarkers of Parkinson’s Disease? A Systematic Review and Meta-Analysis [PDF]

open access: yesDiagnostics
Background/Objectives: The pathological changes preceding the onset of Parkinson’s disease (PD) commence several decades before motor symptoms manifest, offering a potential window for identifying objective biomarkers for early diagnosis and disease ...
Aleksander Dawidziuk   +9 more
doaj   +2 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

Relation of pupillary light reflex to light intensity [PDF]

open access: yesAnnals of General Psychiatry, 2006
Tsiptsios Dimitrios   +4 more
doaj   +2 more sources

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