Results 11 to 20 of about 14,320 (295)

Searching for Complexity in the Human Pupillary Light Reflex [PDF]

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   +2 more sources

Pupillary reflex disorders in strabismic amblyopia with concomitant alternating squint

open access: yesРоссийский офтальмологический журнал, 2022
Purpose. To study pupillary reflexes (pupillary cycle time and pupillary reaction — V) in patients with strabismic amblyopia and concomitant alternating strabismus.   Material and methods.
A. I. Berdibaeva, V. A. Usenko
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

Pupillary light reflex in ethambutol-induced optic neuropathy

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   +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   +3 more sources

Enhanced pupillary light reflex in infancy is associated with autism diagnosis in toddlerhood [PDF]

open access: yesNature Communications, 2018
Previous studies showed that children with autism spectrum disorder (ASD) have atypicalities in the pupillary light reflex (PLR). This study uses longitudinal monitoring of infants at risk for ASD to show that PLR magnitude at 10 months of age is ...
Pär Nyström   +7 more
doaj   +2 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 changes in brain function secondary to injury should cause a change in the parameters of the PLR. We
Frederick Robert Carrick   +7 more
openaire   +4 more sources

Pupillometric analysis for assessment of gene therapy in Leber Congenital Amaurosis patients [PDF]

open access: yes, 2012
Background: Objective techniques to assess the amelioration of vision in patients with impaired visual function are needed to standardize efficacy assessment in gene therapy trials for ocular diseases.
Melillo Paolo   +19 more
core   +1 more source

Estimation of operators’ fatigue using optical methods for determination of pupil activity

open access: yesInternational Journal of Occupational Medicine and Environmental Health, 2015
Introduction The purpose of this study was to develop and initially validate an objective, yet quick, method for assessment of human fatigue. This aim can be achieved by the use of an optical, non-contact method of analysis of pupil activity.
Krzysztof Różanowski   +2 more
doaj   +1 more source

Cortical modulation of pupillary function: systematic review [PDF]

open access: yesPeerJ, 2019
Background The pupillary light reflex is the main mechanism that regulates the pupillary diameter; it is controlled by the autonomic system and mediated by subcortical pathways.
Costanza Peinkhofer   +3 more
doaj   +2 more sources

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