Results 121 to 130 of about 28,602 (306)

Cone Electroretinography by Flicker [PDF]

open access: yesNature, 1951
IT is generally assumed that the b-wave of the human retinal action potential is due to the stimulation of the rods. With an intensity of 2,000 lux, the b-waves fuse at a frequency of about 20 flashes per second. At lower intensities the fusion frequency in our experiments decreased.
openaire   +2 more sources

PROGRESSION OF SCOTOPIC SINGLE-FLASH ELECTRORETINOGRAPHY IN THE STAGES OF CAPN5 VITREORETINOPATHY

open access: yesRetinal cases & brief reports, 2018
Characterization of the degradation of scotopic electroretinography recordings from patients in various stages of autosomal dominant neovascular inflammatory vitreoretinopathy reveals photoreceptors may sustain early insult and reveals a unique time ...
P. Tang   +6 more
semanticscholar   +1 more source

Chromatin remodeling protein HELLS is critical for retinoblastoma tumor initiation and progression. [PDF]

open access: yes, 2020
Retinoblastoma is an aggressive childhood cancer of the developing retina that initiates by biallelic RB1 gene inactivation. Tumor progression in retinoblastoma is driven by epigenetics, as retinoblastoma genomes are stable, but the mechanism(s) that ...
Benavente, Claudia A   +8 more
core  

Visual Function, Ocular Morphology and Growth – Children Born Moderate-to-Late Preterm [PDF]

open access: yes, 2016
Introduction: In the past, researchers have closely studied both systemic and ophthalmological complications associated with extreme preterm birth. Moderate-to-late preterm (MLP) infants have become the fastest-growing subgroup of preterm infants in the ...
Raffa, Lina
core   +1 more source

Evaluation of a Multimodal Anesthetic Protocol for Immobilization in Black Vultures (Coragyps atratus) and Turkey Vultures (Cathartes aura)

open access: yesVeterinary Sciences
Anesthetic protocols for non-invasive immobilization of Black Vultures (Coragyps atratus) and Turkey Vultures (Cathartes aura) for procedures lasting up to two hours are lacking.
Alejandro Vargas Araya   +6 more
doaj   +1 more source

Visual acuity and rod function in patients with retinitis pigmentosa [PDF]

open access: yes, 2004
PURPOSE: To investigate visual acuity and rod function, and correlate them to different clinical parameters in patients with retinitis pigmentosa (RP).
Berezovsky, Adriana   +4 more
core   +4 more sources

WAVELET ANALYSIS OF HUMAN PHOTORECEPTORAL RESPONSE [PDF]

open access: yes, 2010
Feature detection of biomedical signals is crucial for deepening our knowledge of the physiological phenomena giving rise to them. To achieve this aim, even if many analytic approaches have been suggested only few are able to deal with signals whose ...
BARRACO, Rosita Maria Luisa   +2 more
core   +1 more source

Clinical electroretinography in diabetic retinopathy: A review.

open access: yesSurvey of ophthalmology, 2021
J. McAnany   +2 more
semanticscholar   +1 more source

Photopic negative response of full-field electroretinography in patients with different stages of glaucomatous optic neuropathy

open access: yesDocumenta Ophthalmologica, 2016
PurposeTo evaluate photopic negative response (PhNR) discrimination ability between healthy and glaucomatous patients. MethodsNinety eyes of 50 patients with primary open angle glaucoma (POAG) and 45 eyes of 23 healthy age- and sex-matched controls were ...
Marta Kirkiewicz   +2 more
semanticscholar   +1 more source

Optical coherence tomography and electroretinography in pituitary macroadenomas: a 12-month analysis by age and tumor type

open access: yesFrontiers in Endocrinology
PurposeTo evaluate longitudinal changes in optical coherence tomography (OCT) and electroretinography (ERG) parameters over 12 months in patients with pituitary macroadenomas, and to assess variation according to age and tumor type.MethodsThis ...
Monika Sarnat-Kucharczyk   +6 more
doaj   +1 more source

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