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Updated: Jul 6, 2026
Simultaneous Recording of Electroretinography and Visual Evoked Potentials in Anesthetized Rats
Published on: July 1, 2016
[Combined use of pattern electroretinography and pattern visual evoked potentials in neuroophthalmological practice]
Krisztina Benedek1, Andrea Pálffy, Krisztina Bencsik
1Szegedi Tudományegyetem, Szent-Györgyi Albert Orvos- és Gyógyszerésztudományi Centrum, Altalános Orvostudományi Kar, Neurológiai Klinika, Szeged. krisztina.bencsik@invitel.hu
Objective:
To survey the role of pattern electroretinography (PERG) and pattern visual evoked potentials (VEPs) in the process of clinical evaluation of neuro-ophthalmological cases. The study is illustrated with the electrophysiological findings of 231 patients sent to our laboratory in 2005 because of the suspicion of damage in the optic pathway.
Methods:
The RETIport program of the ROLAND equipment (Wiesbaden-Germany) was used to record PERGs and VEPs. The recordings were done according to the recommendations of the International Society for Clinical Electrophysiology of Vision.
Results:
The combined application of PERG and VEP provided useful data on the retino-cortical conduction time and hence demyelinisation. The comparison of the N35/P50 and P50/N90 amplitudes of the PERG recordings greatly promoted the diagnostic procedure.
Conclusions:
The combined application of PERG and VEP methods is recommended in the assessment of optic nerve function of neuro-ophthalmological patients.
