The pattern electroretinogram (PERG) with contralateral corneal reference

Aldebasi, Y. H., Drasdo, N., North, R. V. and Morgan, James Edwards ORCID: https://orcid.org/0000-0002-8920-1065 2001. The pattern electroretinogram (PERG) with contralateral corneal reference. Ophthalmic And Physiological Optics 21 (3) , pp. 243-246. 10.1016/S0275-5408(00)00021-1

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Abstract

The pattern electroretinogram (PERG) is a sensitive test for investigation of the proximal retina. For monocular recording, the contralateral corneal reference (CCR) electrode position has been suggested as a possible alternative to the conventional ipsilateral temporal reference (ITR). We therefore compared the effect of these electrode positions on 26 subjects (median age 45.5 years, IQR 24.5-61.5). The signals were recorded monocularly with DTL nylon fibre electrodes. The visual stimuli were high contrast 19' black-white checkerboard patterns, reversing 4 times/s. PERG responses obtained from the CCR gave larger amplitudes and the increase in amplitude was statistically significant (P < 0.001). Because the CCR signal is larger, new normative ranges must be established to avoid false negative results.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine
Subjects:	R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Publisher:	Blackwell Publishing
ISSN:	0275-5408
Last Modified:	31 Oct 2022 09:23
URI:	https://orca.cardiff.ac.uk/id/eprint/80829

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