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Pattern electroretinogram and luminance electroretinogram in Alzheimer’s disease
1991Visual symptoms are often among the first complaints of patients suffering from Alzheimer's disease and several studies showed a delay in flash visual evoked potentials. Hinton et al. (1986) described optic nerve degenerations in patients with Alzheimer's disease and Sadun published a dropout of retinal ganglion cells that range from 30% to 60%.
K, Strenn +5 more
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Electroretinogram in Diabetic Retinopathy
Archives of Ophthalmology, 1962The classical electroretinogram (ERG) has been intensively studied, mainly concerning its initial deflections (a- andb- waves), in various diseases of the eye since the systematic work initiated by Karpe1who defined several basic pathologic types of ERG. Several papers have appeared in relation to the classical ERG in diabetic retinopathy. Francois and
D, YONEMURA, T, AOKI, K, TSUZUKI
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2019
The electroretinogram (ERG) is an electrical response of the retina to photic stimulation. A flash of light or bright appearance of a pattern elicits a biphasic negative/positive waveform. The a-wave originating in the receptor level of rods and cones is the initial large negative wave.
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The electroretinogram (ERG) is an electrical response of the retina to photic stimulation. A flash of light or bright appearance of a pattern elicits a biphasic negative/positive waveform. The a-wave originating in the receptor level of rods and cones is the initial large negative wave.
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Human pattern-evoked electroretinogram
Journal of Neurophysiology, 1984We have recorded electroretinographic (ERG) responses to grating patterns whose spatial, temporal, and contrast parameters were varied. The resultant evoked potential is dependent on spatial frequency and it exhibits a spatial band-pass characteristic. The peak frequency is dependent on retinal eccentricity.
R F, Hess, C L, Baker
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Archives of Ophthalmology, 1958
Previous speakers have shown the progress in understanding visual problems that has been achieved by experimentation on animals. By comparison, the human being is obviously a poor subject for physiological studies because of the limitation that we may not inflict damage or even serious discomfort upon the person.
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Previous speakers have shown the progress in understanding visual problems that has been achieved by experimentation on animals. By comparison, the human being is obviously a poor subject for physiological studies because of the limitation that we may not inflict damage or even serious discomfort upon the person.
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The Electroretinogram of Cynomya
The Anatomical record, 1947(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
V J, WULFF, T L, JAHN
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Acute effects of sildenafil on the electroretinogram and multifocal electroretinogram
American Journal of Ophthalmology, 2001To evaluate the acute effects of sildenafil (Viagra; Pfizer, Inc, New York, New York) on the electroretinogram and multifocal electroretinogram.Eighteen healthy individuals (ages 21-49 years) were studied; 14 were given 200 mg sildenafil orally and four were given only water.
J K, Luu +3 more
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Test–retest repeatability of the pattern electroretinogram and flicker electroretinogram
Documenta Ophthalmologica, 2019To evaluate the repeatability of the steady-state pattern electroretinogram (PERG) and full-field flicker electroretinogram (Flicker ERG) protocols, delivered by the office-based Neuro Optic Vision Assessment (NOVA)™ testing platform, in healthy subjects.Healthy individuals underwent PERG (16° and 24°) and Flicker ERG [fixed luminance (FL) and multi ...
Arthur F, Resende +7 more
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ELECTRONEGATIVE ELECTRORETINOGRAM IN ACHROMATOPSIA
RETINAL Cases & Brief Reports, 2018Purpose: To report novel electroretinographic findings in a genetically confirmed case of achromatopsia. Methods: A patient with a history of childhood nystagmus, photoaversion, and absent color vision was examined.
Craig S, Schallhorn +2 more
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The electroretinogram in children
Current Opinion in Ophthalmology, 2008The electroretinogram is an essential tool in the evaluation of the functional integrity of the retina, which may be especially useful in preverbal children. The present review describes the modifications needed for performing an electroretinogram in young children.
Reut, Parness-Yossifon +1 more
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