Results 11 to 20 of about 21,624 (285)

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   +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

A high-resolution binocular video-oculography system: assessment of pupillary light reflex and detection of an early incomplete blink and an upward eye movement [PDF]

open access: yes, 2015
Background: The pupillary light reflex characterizes the direct and consensual response of the eye to the perceived brightness of a stimulus. It has been used as indicator of both neurological and optic nerve pathologies. As with other eye reflexes, this
Espinosa Tomás, Julián   +3 more
core   +2 more sources

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

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

Melanopsin-expressing retinal ganglion cells are resistant to cell injury, but not always [PDF]

open access: yes, 2017
Melanopsin retinal ganglion cells (mRGCs) are intrinsically photosensitive RGCs deputed to non-image forming functions of the eye such as synchronization of circadian rhythms to light-dark cycle.
Carelli, Valerio   +7 more
core   +1 more source

Pupillary light reflex of lamprey Petromyzon marinus [PDF]

open access: yesCurrent Biology, 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, Ala   +4 more
openaire   +4 more sources

Are there predictive pupillometry markers in determining external ventricular device (EVD) weaning failure or success in subarachnoid hemorrhage patients? [PDF]

open access: yes, 2018
Pupillometers objectively measure constriction (i.e., parasympathetic pathwy) and dilation (i.e., sympathetic pathway) velocities of the pupillary reflex.
Bezner, Tracy   +4 more
core   +1 more source

Medical management of hereditary optic neuropathies. [PDF]

open access: yes, 2014
Hereditary optic neuropathies are diseases affecting the optic nerve. The most common are mitochondrial hereditary optic neuropathies, i.e., the maternally inherited Leber's hereditary optic neuropathy (LHON) and dominant optic atrophy (DOA).
Barboni, Piero   +4 more
core   +1 more source

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