Pattern reversal ERG and VEP--comparison of stimulation by LED, monitor and a Maxwellian-view system.

Documenta Ophthalmologica. Advances in Ophthalmology
Barbara LinkFolkert K Horn

Abstract

Pattern stimulation is widely used to detect inner retinal dysfunction. In this work we describe a pattern stimulation technique with LEDs and compare the results with conventional methods. PERG and VEP were derived from three normal subjects. Three different techniques were used to generate a checkerboard pattern reversal stimulus: a 70 Hz monitor, a Maxwellian-view system equipped with a Xenon-arc lamp and a mechanical mirror system, and a LED array (Roland Consult) consisting of 100 white LEDs. Two kinds of luminance (125 and 340 cd/m2) and four temporal frequencies (4, 8, 12 and 24 reversals per second) were studied on three healthy subjects. Additionally, a luminance tuning experiment (30, 60, 90, 125 and 340 cd/m2) was performed on one subject. Comparison of different stimulation techniques shows reproducible responses of PERG and VEP with all three methods. The LED array leads to slightly smaller amplitudes than both other techniques, which we ascribe to the design of the LED field. No difference of peak times or phases was noticed between different stimulation techniques. A luminance dependency of PERG and VEP is noticeable using stimulation with LED: with decreasing luminance we measured increasing peak times of PERG a...Continue Reading

References

Nov 1, 1979·Electroencephalography and Clinical Neurophysiology·C M Epstein
Jun 1, 1978·Journal of Neurology, Neurosurgery, and Psychiatry·B Y Nilsson
Apr 1, 1991·Journal of Molecular Evolution·J Lanfear, P W Holland
Feb 1, 1985·Documenta Ophthalmologica. Advances in Ophthalmology·J Czopf
Oct 30, 1985·Documenta Ophthalmologica. Advances in Ophthalmology·T Berninger, R P Schuurmans
Oct 1, 1974·Electroencephalography and Clinical Neurophysiology·B T EvansD S Lloyd
Jun 1, 1984·Journal of Neurology, Neurosurgery, and Psychiatry·N F SkuseB McKeon
Jan 1, 1997·Documenta Ophthalmologica. Advances in Ophthalmology·M BachJ Gerling
Dec 29, 2000·Documenta Ophthalmologica. Advances in Ophthalmology·M BachY Miyake
Oct 11, 2001·European Journal of Ophthalmology·M Bach
Jan 24, 2003·Documenta Ophthalmologica. Advances in Ophthalmology·Michael Bach, Margret Schumacher
May 10, 2003·Documenta Ophthalmologica. Advances in Ophthalmology·Kazuki KuniyoshiYoshikazu Shimomura
May 21, 2003·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Thomas LindenbergMatthias Korth
Nov 6, 2003·Vision Research·Sandra StiefelmeyerGünther Rudolph
Apr 24, 2004·Documenta Ophthalmologica. Advances in Ophthalmology·Mieko TsuruokaMasanori Hayashi
Apr 24, 2004·Documenta Ophthalmologica. Advances in Ophthalmology·Hang Yin, Machelle T Pardue
Oct 1, 2004·Documenta Ophthalmologica. Advances in Ophthalmology·J Vernon Odom Vaegan

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Citations

Jan 27, 2011·Documenta Ophthalmologica. Advances in Ophthalmology·Folkert K HornJan Kremers
May 6, 2014·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·A HerbikM B Hoffmann
Mar 13, 2014·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Jonathon Toft-NielsenÖzcan Özdamar
Mar 6, 2019·Translational Vision Science & Technology·Bettina HohbergerFolkert K Horn

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