Fig. 3
Multifocal ERG recording. a Infrared fundus photo of a cynomolgus monkey eye taken during mfERG recording with a GRACE device, superimposed with the stimulus array. The white dotted oval marks the position of the optic nerve head and black dotted circle marks the position of the macula. b Representation of trace array recorded from the cynomolgus monkey eye in a with GRACE. The waves of 37 focal ERG signals are topographically arranged. The principal mfERG components N1, P1, and N2 can be clearly defined in these waveforms, as labeled for one of the responses. c Response density plot (retinal view) on P1-wave associated with b. d The mfERG responses grouped and averaged for each of the regions marked by different colors. The values show response density of the P1 peak (as defined by the triangles on the traces) in each of the associated regions
