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Updated: May 28, 2026

Multifocal Electroretinograms
Published on: December 4, 2011
ISCEV standard for clinical multifocal electroretinography (mfERG) (2011 edition)
Donald C Hood1, Michael Bach, Mitchell Brigell
1Departments of Psychology and Ophthalmology, Columbia University, New York, NY, USA. dch3@columbia.edu
Abstract:
The clinical multifocal electroretinogram (mfERG) is an electrophysiological test of local retinal function. With this technique, many local ERG responses are recorded quasi-simultaneously from the cone-driven retina under light-adapted conditions. This document, from the International Society for Clinical Electrophysiology of Vision (ISCEV: www.iscev.org ), replaces the ISCEV guidelines for the mfERG published in 2007. Standards for performance of the basic clinical mfERG test with a stimulus array of 61 or 103 hexagons, as well as for reporting the results, are specified.
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