Fig. 4

Humphrey Field Analyzer Central 30–2 program (HFA 30–2) corresponding to the mfPhNR regions. (see Fig. 3). To compare the multifocal photopic negative response to B-wave ratio (mfPhNR/B) with the corresponding visual field findings, we measured the thresholds with the HFA 30–2 and averaged for the same sectors (i.e., superonasal, superotemporal, center, inferonasal, and inferotemporal) according to the distance from the macula within the central 20°