mfERG
Multifocal electroretinography (mfERG) is an electrophysiological test that measures local retinal function across the central retina by recording responses to a rapidly varying pattern of light stimuli. Unlike standard full-field ERG, which assesses the global response of the entire retina, mfERG provides a map of localized responses, allowing assessment of the macula and adjacent retina.
The test uses an array of light stimuli that can be arranged as hexagons or other tessellated
mfERG is used clinically to evaluate central retinal function in a variety of conditions. It is
Limitations include dependence on patient cooperation and stable fixation, potential artifacts from blinks or poor electrode