Results 41 to 50 of about 2,090 (184)
Frontiers in Cellular Neuroscience, 2022 Retinal ganglion cells expressing the photopigment melanopsin are intrinsically photosensitive (ipRGCs). ipRGCs regulate subconscious non-image-forming behaviors such as circadian rhythms, pupil dilation, and light-mediated mood.
Sadaf Abed +3 more
doaj +1 more source
Frontiers in Neurology, 2018 Purpose: Intrinsically photosensitive retinal ganglion cells (ipRGCs) contain the photopigment melanopsin, and are primarily involved in non-image forming functions, such as the pupillary light reflex and circadian rhythm entrainment.
Lisa A. Ostrin +8 more
doaj +1 more source
Spectral dependency of the human pupillary light reflex. Influences of pre-adaptation and chronotype
PLoS ONE, 2022 Non-visual photoreceptors (ipRGCs) and rods both exert a strong influence on the human pupil, yet pupil models regularly use cone-derived sensitivity as their basis.
Johannes Zauner +2 more
doaj +2 more sources
Light-induced c-Fos expression in an ipRGC lacking melanopsin.
, 2013 (upper panel) An M1 ipRGC in the retina of a tau-lacZ+/+ mouse identified by β-galactosidase immunostaining. Note the dendrite emanating from this ipRGC extends to the outer aspect of the IPL, bifurcates and stratifies along the border of the INL ...
Malcolm D. Ogilvie (373840) +3 more
core +1 more source
Development of melanopsin-based irradiance detecting circuitry
Neural Development, 2011 Background Most retinal ganglion cells (RGCs) convey contrast and motion information to visual brain centers. Approximately 2% of RGCs are intrinsically photosensitive (ipRGCs), express melanopsin and are necessary for light to modulate specific ...
Morhardt Duncan +6 more
doaj +1 more source
Investigation of light-induced lacrimation and pupillary responses in episodic migraine.
PLoS ONE, 2020 The purpose of this pilot study was to investigate the light-induced pupillary and lacrimation responses mediated by intrinsically photosensitive retinal ganglion cells (ipRGCs) in migraine.
Marija Zivcevska +5 more
doaj +1 more source
M1 ipRGCs Influence Visual Function through Retrograde Signaling in the Retina [PDF]
Journal of Neuroscience, 2016 Melanopsin-expressing intrinsically photosensitive retinal ganglion cells (ipRGCs, with five subtypes named M1-M5) are a unique subclass of RGCs with axons that project directly to many brain nuclei involved in non-image-forming functions such as circadian photoentrainment and the pupillary light reflex.
Cameron L, Prigge +10 more
openaire +2 more sources
Blue light activates pulvinar nuclei in longstanding idiopathic photophobia: A case report
NeuroImage: Clinical, 2019 Numerous pathologies can contribute to photophobia. When considering light transduction alone, photophobia may be triggered through melanopsin pathways (non-image forming), rod and cone pathways (image-forming), or some combination of the two.
Athanasios Panorgias +4 more
doaj +1 more source
The ipRGC‐Driven Pupil Response with Light Exposure, Refractive Error, and Sleep [PDF]
Optometry and Vision Science, 2018 Supplemental digital content is available in the text. SIGNIFICANCE We investigated links between the intrinsically photosensitive retinal ganglion cells, light exposure, refractive error, and sleep.
Kaleb S, Abbott +2 more
openaire +2 more sources
Binocular head-mounted chromatic pupillometry can detect structural and functional loss in glaucoma
Frontiers in Neuroscience, 2023 AimThe aim of this study is to evaluate the utility of binocular chromatic pupillometry in detecting impaired pupillary light response (PLR) in patients with primary open-angle glaucoma (POAG) and to assess the feasibility of using binocular chromatic ...
Yadan Quan +27 more
doaj +1 more source