Results 31 to 40 of about 10,398 (213)

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, Shaobo Lei, Alan Blakeman, Daune MacGregor, Herbert C Goltz, Agnes M F Wong   +5 more
doaj   +1 more source

Pupillary Size and Light Reflex in Premature Infants [PDF]

Neuro-Ophthalmology, 2015
The authors examined pupillary light reflexes to both red and blue stimuli using infrared video-pupillography in premature infants. Pupillary light reflexes were obtained in response to 470 nm blue and 635 nm red stimuli with varying intensities of 10 cd/m2 and 100 cd/m2. Red stimuli did not evoke a pupillary response in premature infants.
Tetsuya, Ikeda, Hitoshi, Ishikawa, Kimiya, Shimizu, Ken, Asakawa, Toshiaki, Goseki   +4 more
openaire   +2 more sources

A Custom-made Pupillometer System for Characterizing Pupillary Light Response

Türk Oftalmoloji Dergisi, 2018
Objectives:This paper presents the design and construction of a viable pupillometer system and demonstrates its merits with extensive validation tests.Materials and Methods:A web camera was modified by removing its infrared filter and mounted on a chin ...
Nefati Kıylıoğlu, Mahmut Alp Kılıç, Tolga Kocatürk, Seyhan Bahar Özkan, Mehmet Bilgen   +4 more
doaj   +1 more source

Quantitative assessments of pupillary light reflexes in hospital-onset unresponsiveness

BMC Neurology, 2021
Background Patients who develop hospital-onset unresponsiveness should be promptly managed in order to avoid clinical deterioration. Pupillary examination through pupillary light reflex is the gold standard method in the initial evaluation of ...
Hyunjo Lee, Soh Hyun Choi, Bobin Park, Yoon-Hee Hong, Han-Bin Lee, Sang-Beom Jeon   +5 more
doaj   +1 more source

Consensual pupillary light reflex in the pigmented rat [PDF]

Vision Research, 1989
We measured the pupillary light reflex (PLR) in 5 pigmented, Long Evans rats (under urethan sedation) in three conditions: direct stimulation, consensual stimulation, and a control condition designed to measure the effects of stray light. The average constriction (maximal amplitude) produced by a ganzfeld stimulus delivering 1.6 log quanta absorbed per
Trejo, Lenard J, Rand, Mark N, Cicerone, Carol M   +2 more
openaire   +4 more sources

GHRHR Deficiency Enhances Retinal Ganglion Cell Survival and Visual Functions in Experimental Glaucoma by Inhibiting Ferroptosis

Advanced Science, EarlyView.
Glaucoma, a major cause of blindness, involves retinal ganglion cell (RGC) degeneration. This study shows growth hormone‐releasing hormone receptor (GHRHR) deficiency preserves RGC survival and restores vision, unlike activation which only aids survival.
Yan Tong, Ming Ho Yam, Jiaxin Zhang, Lin Du, Linbin Zhou, Yolanda Wong Ying Yip, Bo Man Ho, Hemlata Bisnauthsing, Jiahui Li, Ivan Kong, Shushu Xu, Changzhen Fu, Karl K.H. So, Joaquim S.L. Vong, Ling‐Ping Cen, Ming‐Ming Yang, Khazeema Yousaf, Mai Har Sham, Sun On Chan, Poemen P. Chan, Chi Pui Pang, Clement C. Tham, Jing Na He, Jian Li, Wai Kit Chu   +24 more
wiley   +1 more source

PUPILLARY REFLEX AT EASE: A new instrument for the demonstration of Pupillary reflex

Indian Journal of Ophthalmology
As ophthalmologists, we often come across a lot of patients with neuro-ophthalmological disorders that show no positive examination findings except for subtle abnormalities in the pupillary light reflex. However, these subtle changes are often overlooked
Allapitchai Fathima, Praveena Shyam, Shivam Gupta, Meenakshi Ravindran   +3 more
doaj   +1 more source

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

Advanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale, Marie Celine Lefevre, Alessio Carmignani, Maria Cristina Ceccarelli, Matteo Battaglini, Attilio Marino, Gianni Ciofani   +6 more
wiley   +1 more source

Photonic‐Enabled Energy‐Efficient Transparent Neuromorphic Computing Devices: A Review

Advanced Science, EarlyView.
Transparent photonic neuromorphic computing devices merge optics and brain‐inspired computing to overcome von Neumann bottlenecks with ultrafast, low‐energy processing. By exploiting transparent oxides, 2D materials, phase‐change materials, and hybrid heterostructures, these platforms enable photonic synapses, memory, and logic for see‐through edge ...
Shuvaraj Ghosh, Ki‐bum Lee, Junghyeon Lee, Seunghee Cho, Malkeshkumar Patel, Hangfei Li, Yu Wen, Ye Zhou, Joondong Kim   +8 more
wiley   +1 more source

Pupillary Light Reflex is Altered in Adolescent Depression

Physiological Research, 2017
Major depressive disorder is associated with abnormal autonomic regulation which could be noninvasively studied using pupillometry. However, the studies in adolescent patients are rare. Therefore, we aimed to study the pupillary light reflex (PLR), which could provide novel important information about dynamic balance between sympathetic and ...
A, Mestanikova, I, Ondrejka, M, Mestanik, D, Cesnekova, Z, Visnovcova, I, Bujnakova, M, Oppa, A, Calkovska, I, Tonhajzerova   +8 more
openaire   +2 more sources