Results 41 to 50 of about 17,729 (253)

The Pupillary Light Reflex in Borderline Diabetics

Journal of International Medical Research, 1989
Computerized IR videopupillography, using an open-loop photic stimulator, was used to compare the reflexes of borderline diabetics with overt non-insulin-dependent diabetics and with age- and sex-matched non-diabetic healthy controls. The patients were all male, aged 41–59 years.
N, Kuroda, H, Taniguchi, S, Baba, M, Yamamoto   +3 more
openaire   +2 more sources

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

Pupil light reflex evoked by light-emitting diode and computer screen: methodology and association with need for recovery in daily life [PDF]

, 2018
Objectives: Pupil light reflex (PLR) has been widely used as a method for evaluating parasympathetic activity. The first aim of the present study is to develop a PLR measurement using a computer screen set-up and compare its results with the PLR ...
Kramer, Sophia E., Lunner, Thomas, Naylor, Graham, Wang, Yang, Wendt, Dorothea, Zekveld, Adriana A.   +5 more
core   +4 more sources

Quantitative Assessment of the Canine Pupillary Light Reflex [PDF]

Investigative Opthalmology & Visual Science, 2013
To develop instrumentation and methods for thorough quantitative assessment of the pupillary light reflex (PLR) in dogs under varying stimulus conditions.The PLR was recorded in normal Dachshunds using a custom system allowing full user control over stimulus intensity, color, and duration.
Rebecca E H, Whiting, Gang, Yao, Kristina, Narfström, Jacqueline W, Pearce, Joan R, Coates, John R, Dodam, Leilani J, Castaner, Martin L, Katz   +7 more
openaire   +2 more sources

Pupil and Pupillary Light Reflex

Sakarya Üniversitesi Holistik Sağlık Dergisi
Neurological and neurosurgical diseases encompass a broad spectrum of conditions that may present with acute or chronic courses, benign or malignant characteristics, diverse clinical manifestations, and prolonged recovery periods.
Didem Özdağ, Bediye Öztaş
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

Reduced pupillary light reflexes in diabetic autonomic neuropathy [PDF]

Diabetologia, 1983
Infrared television pupillometry was performed in 71 healthy and 66 insulin-treated diabetic subjects. Resting pupil diameter and the amplitude of the reflex response to standard light flashes were measured in background darkness. In the healthy subjects with small pupils (less than 6 mm) the size of the light reflex was found to depend on the diameter
S A, Smith, S E, Smith
openaire   +2 more sources

GATA4‐Driven Transcription of HtrA1 Promotes Cellular Senescence in Ménière's Disease and Age‐Related Audio‐Vestibular Dysfunction

Advanced Science, EarlyView.
This study identifies the HDAC6/GATA4/HtrA1 axis as a critical driver of cellular senescence in the inner ear. GATA4 nuclear translocation, facilitated by HDAC6 downregulation, transcriptionally activates HtrA1, promoting hair cell senescence, SASP, and audio‐vestibular dysfunction in models of Ménière's disease and age‐related audio‐vestibular ...
Na Zhang, Na Li, Yan Wang, Jing Zhang, Jiahui Liu, Lei Chen, Yongdong Song, Yurong Mu, Yuechen Han, Yafeng Lyu, Xiaofei Li, Hanyue Wang, Jing Wang, Yao Lu, Zhaomin Fan, Daogong Zhang, Haibo Wang   +16 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