Fig. 1

Alignment of RNFL, OCT, mfPOP and HFA. Left-eye equivalent maps of the optical coherence tomography (OCT) sectors and their retinal nerve fibre layer (RNFL) trajectories, with multifocal pupillographic objective perimetry (mfPOP) test regions (left) and Humphrey Field Analyzer (HFA) test-points (right) superimposed. Grey and white radiating arcuate patches delineate the pRNFL trajectories within the divisions which were defined using the RNFL model.(Jansonius NM et al. [16]) Grey dotted lines on pRNFL sector boundaries represent estimated trajectories in the nasal retina, as a result of the absence of RNFL data in the nasal region of the Jansonius model. Retinal location of the OCT pRNFL sectors are indicated by: S—Superior; I—inferior; N—Nasal; T—Temporal. The boundaries of the mfPOP regions as shown somewhat exaggerate the degree of overlap because stimulus edges fade to zero contrast (see e.g. Carle CF et al. [18])