The above recordings were taken from the right eye. a. What is this test? b. What is the main advantage of this technique over electroretinogram?
a. What is this test?
b. What is the main advantage of this technique over electroretinogram?
Answer a This is multifocal ERG (electroretinogram). The technique records more than a hundred closely spaced locations in the retina to generate a three dimensional map of retinal activity. Answer b Multifocal ERG provides information about focal impairment and early retinal disease affected in small area on the retina. ERG provides objective information about widespread retinal function and may not pick up small area of lesion.
Answer b Multifocal ERG provides information about focal impairment and early retinal disease affected in small area on the retina. ERG provides objective information about widespread retinal function and may not pick up small area of lesion.
