Figure 2.

Predicted survival curves for two eyes, one that showed a fast rate of retinal nerve fiber layer loss (right panel) and one that showed a stable measurements over time (left panel). Slopes are given as μm/year. A comparison of the predicted survival probabilities shows that the eye with fast progression had lower predicted probabilities of survival (i.e., retaining a normal visual field). The eye with a fast rate of loss in fact showed development of visual field damage during follow-up whereas the eye with stable measurements did not. RNFL: retinal nerve fiber layer. VFD: visual field damage