The Bar-Pattern Electroretinogram for Clinical Evaluation of the Central Retina

Lawwill, Theodore

doi:10.1016/0002-9394(74)90020-8

Cited by 41 publications

(17 citation statements)

References 4 publications

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“…The pattern ERG is a means to discrim inate electrophysiologically the .macular function from that of the peripheral retina [2,15]. It also seems to represent the function of the ganglion cell layer and hence has been used clinically in optic nerve dysfunctions [3][4][5][6][7][8].…”

Section: Discussionmentioning

confidence: 99%

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A Standardized Method for Recording Pattern-Elicited Electroretinograms in Normal Human Subjects

Ringens¹,

Lith²,

Vijfvinkel-Bruinenga³

1984

Ophthalmologica

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The pattern-elicited electroretinogram may be a useful tool for a further refinement of electro-ophthalmological diagnosis. Before being able to detect abnormalities under various pathological conditions, it is necessary to standardize the procedure and calculate the values for normal human test subjects. The routine procedure for these experiments is described and the data obtained are presented. This method appears to be reproducible and useful and is little time consuming in a diagnostic laboratory set-up.

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Section: Discussionmentioning

confidence: 99%

“…For the ERG, this approach was first put to clinical use by Lawwill [2], Various reports on the origin of this pattern-elicited ERG have appeared only recently, all indicating that it represents a function of the ganglion cell layer [3][4][5][6][7][8]. Its clinical use has been widely documented as well [2,[4][5][6][7][8]. Some authors [4.…”

Section: Introductionmentioning

confidence: 99%

A Standardized Method for Recording Pattern-Elicited Electroretinograms in Normal Human Subjects

Ringens¹,

Lith²,

Vijfvinkel-Bruinenga³

1984

Ophthalmologica

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“…Das Muster-bzw. Kontrast-ERG ermöglicht präzise Aussagen über die Foveafunktion auf retinaler Ebene [Lawwill, 1974;Groneberg, 1980]. Durch Ableitung der visuell evozierten kortikalen Potentiale (VEKP) auf Reizmuster lässt sich unter an derem die Leitungsfunktion des Sehnervs überprüfen [Halliday et al, 1973].…”

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Elektroophthalmologische Befunde bei Optikusatrophien verschiedener Genese

Teping¹,

Schnaudigel²

1982

Ophthalmologica

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The recording of visually evoked cortical potentials in response to pattern stimuli of different brightness contrast permits functional examination of the optic nerve. This procedure has already been shown to be useful in inflammatory diseases of the optic nerve. Clinical case studies are presented showing that optic atrophies, independent of their etiology, can be ascertained by visually evoked cortical potentials elicited by pattern stimuli, occasionally also by the application of homogeneous light flashes (brightness responses). The technique is shown to be useful especially in early stages of disorders of the optic nerve.

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“…[1], Lawwill [2] reported the first clinical application of PERG in patients with macular dysfunc tion. However, compared with the pattern reversal visual evoked response (PVER) later introduced by Spekreijse [3], its clinical appli cation was limited.…”

Section: Introductionmentioning

confidence: 99%

Effect of Hemifield Stimulation on Simultaneous Steady-State Pattern Reversal Electroretinogram and Visual Evoked Response

Katsumi

Tetsuka²,

Mehta³

et al. 1993

Ophthalmic Res

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Steady-state pattern reversal electroretinograms (PERG) and pattern reversal visual evoked responses (PVER) were recorded simultaneously in 4 normal subjects using hemifield stimulation of the upper/lower and nasal/temporal conditions with 95 and 60% stimulus contrasts. A square-wave checkerboard pattern (check size 40 min of arc) was used. The temporal frequency (reversal rate) was 6 Hz (12 reversals/s). With nasal/temporal hemifield stimulation, neither the PERG nor the PVER amplitudes differed significantly with either stimulus contrast. With the upper/lower hemifield stimulation, PERG amplitudes were not significantly different; PVER showed a significantly larger amplitude for lower than for upper hemifield stimulation with both contrasts (ANOVA test: p = 0.0064, 95% contrast; p = 0.0018, 60% contrast). PVER amplitudes recorded with lower hemifield stimulation were 2.05 and 2.63 times larger than those elicited with upper hemifield stimulation, for the 95 and 60% contrasts, respectively. The difference in response to the upper/lower hemifield stimulation, observed only in PVER, suggests that the lower stimulus field dominancy may be processed in a visual pathway proximal to the retinal level.

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The Bar-Pattern Electroretinogram for Clinical Evaluation of the Central Retina

Cited by 41 publications

References 4 publications

A Standardized Method for Recording Pattern-Elicited Electroretinograms in Normal Human Subjects

A Standardized Method for Recording Pattern-Elicited Electroretinograms in Normal Human Subjects

Elektroophthalmologische Befunde bei Optikusatrophien verschiedener Genese

Effect of Hemifield Stimulation on Simultaneous Steady-State Pattern Reversal Electroretinogram and Visual Evoked Response

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