Multifocal electroretinography | definition of multifocal electroretinography by Medical dictionary
Also found in: Acronyms
electroretinography, multifocal (mfERG)
Simultaneous recording of the electroretinogram from small retinal areas (e.g. 103 hexagonal areas in the central 50 degrees of the retina) which are independently light stimulated according to a binary m-sequence (e.g. a random reversal at 75 Hz). This method enables evaluation of specific regions of the retina (e.g. macular degeneration) and mainly of the cone pathway.
References in periodicals archive
Supplementary Figure 2: multifocal electroretinography
of the right eye for the 3 probands and a normal age-matched control.
Visual field defects in AZOOR patients are caused by outer retinal impairment and are demonstrated by decreased responses on multifocal electroretinography
(ERG)  and disrupted ellipsoid zones detected by spectral domain optical coherence tomography (SD-OCT) [4, 5].
The multifocal electroretinography
(mfERG) stimulus was generated on a 20 inch ViewSonic monitor with a frame rate of 75 Hz and viewed at a distance of 30 cm.