Figure 3.

The number of eyes flagged as progressing by pointwise linear regression are shown after censoring sensitivities below some cutoff CdB to set them equal to CdB. Solid lines: An eye was labeled progressing if three or more locations were progressing (slope worse than −1 dB/year, with a significance of P < 1%). Dashed lines: An eye was labeled progressing if three or more neighboring locations were progressing. Analysis was performed using the last six (black) or the last eight (red) visual fields in the series for each eye.