Comparison of event-based analysis Kaplan-Meier curves across visual field (VF), global two-dimensional retinal nerve fiber layer (RNFL) thickness, global three-dimensional neuroretinal rim thickness [minimum distance band (MDB) thickness], and disc photograph (DP). Log-rank tests were used to compare the global MDB thickness method to VF, global RNFL thickness, and DP with P = 0.15, < 0.001, and < 0.001 respectively, indicating that global MDB thickness by event-based criterion detected progression significantly earlier than global RNFL thickness and DP. The Holm method was used to adjust the log-rank tests for multiple comparisons.