Results 11 to 20 of about 106,507 (261)

The Fetal Visual Evoked Potential [PDF]

open access: yesPediatric Research, 1986
Five singleton fetal lambs were surgically instrumented at 110-121 days gestation (term gestation = 145 days) for measurement of visual evoked potentials (VEP) in utero. Light flashes were generated by a small incandescent bulb secured under the right fetal eyelids and the visual responses were recorded through stainless steel electrodes implanted in ...
J R, Woods, M A, Plessinger
openaire   +2 more sources

Study of VEP in Ethambutol Optic Neuropathy: A Cross-sectional Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research
Introduction: One important first-line drug for treating Tuberculosis (TB) is Ethambutol (EMB), which carries a built-in risk of causing optic neuropathy, potentially resulting in permanent visual impairment.
Sofiza Mohmedsaleem Chandniwala   +3 more
doaj   +1 more source

The effect of change of check size and wavelength of stimulus on visual-evoked potential parameters

open access: yesDelta Journal of Ophthalmology, 2016
Purpose of the study The present study was conducted to evaluate the effect of change of wavelength of flash stimulus and change of check size on the parameters of the visual-evoked potential (VEP) amplitude and latency in normal individuals ...
Mona Abdelkader
doaj   +1 more source

Comparison of the efficacies of patching and penalization therapies for the treatment of amblyopia patients

open access: yesInternational Journal of Ophthalmology, 2014
AIM: Tocompare the efficacies of patching and penalization therapies for the treatment of amblyopia patients.METHODS:The records of 64 eyes of 50 patients 7 to 16y of age who had presented to our clinics with a diagnosis of amblyopia, were evaluated ...
Cemalettin Cabi   +3 more
doaj   +1 more source

Visual evoked potentials in the horse [PDF]

open access: yesBMC Veterinary Research, 2016
Electrical potentials generated in the central nervous system in response to brief visual stimuli, flash visual evoked potentials (FVEPs), can be recorded non-invasively over the occipital cortex. FVEPs are used clinically in human medicine and also experimentally in a number of animal species, but the method has not yet been evaluated in the horse ...
L. Ström, B. Ekesten
openaire   +3 more sources

Evaluation of the effect of myopia on visual evoked potential in medical students

open access: yesNational Journal of Physiology, Pharmacy and Pharmacology, 2022
Background: Visual evoked potentials (VEPs) are electrical potential differences recorded from the occipital lobe in response to different visual stimulus.
Smile Garg   +3 more
doaj   +1 more source

Normative values of visual evoked potential in adults

open access: yesIndian Journal of Ophthalmology, 2021
Purpose: Visual evoked potentials (VEP) are used to determine the function of visual pathway from the optic nerve to visual cortex. Various factors may affect VEP response, viz., technical and environmental.
Merry Septemi Ekayanti   +2 more
doaj   +1 more source

Steady-state visual evoked potentials differentiate between internally and externally directed attention

open access: yesNeuroImage, 2022
While attention to external visual stimuli has been extensively studied, attention directed internally towards mental contents (e.g., thoughts, memories) or bodily signals (e.g., breathing, heartbeat) has only recently become a subject of increased ...
Lior Kritzman   +5 more
doaj   +1 more source

Visual evoked potentials in neurobrucellosis

open access: yesNeurosciences, 2008
OBJECTIVE: To investigate whether visual evoked potentials (VEPs) are valuable for distinguishing between brucellosis with or without neurological involvement. METHODS: A total of 23 patients who were admitted to the Department of Infectious Diseases and Microbiology, and Neurology, Ministry of Health Ankara Education and Research Hospital, Ankara ...
Ergun, Ufuk   +6 more
openaire   +5 more sources

Pattern visual evoked potentials in dyslexic versus normal children

open access: yesJournal of Ophthalmic & Vision Research, 2015
Purpose: Presence of neurophysiological abnormalities in dyslexia has been a conflicting issue. This study was performed to evaluate the role of sensory visual deficits in the pathogenesis of dyslexia.
Javad Heravian   +7 more
doaj   +1 more source

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