Figure 3.

Performance of Drasdo displacement versus no displacement as a function of pattern deviation (PD) VF results across the entire cohort, expressed as the difference between proportions of concordant OCT and VF results (flagged as OCT defective with VF defective and as OCT not defective with VF not defective), for (A) all data points and (B) only data points included for both Drasdo and no displacement analyses. For all graphs, unshaded areas indicative positive differences, that is where Drasdo displacement demonstrated better concordance, whereas blue shaded areas indicate negative differences, that is where no displacement demonstrated better concordance. Asterisks indicate significant differences in concordance between Drasdo and no displacement (P = 0.0008).