Classification of glaucoma cases as slow, moderate and fast progressors (N=1424 eyes from 757 patients)
| Structural progressors* | ||
| Group | RNFL rate of change (μm/year) | Eyes, n (%) |
| Slow | >−1 | 269 (18.9%) |
| Moderate | −2 to −1 | 766 (53.8%) |
| Fast | ≤−2 | 389 (27.3%) |
| Functional progressors† | ||
| Group | MD rate of change (dB/year) | Eyes, n (%) |
| Slow | >−0.5 | 1256 (88.2%) |
| Moderate | −0.5 to −1 | 150 (10.5%) |
| Fast | ≤−1 | 18 (1.3%) |
*Structural progression was defined by the annual rate of change of global RNFL thickness, calculated from the linear mixed effects model.
†Functional progression was defined by the annual rate of change of MD from visual fields, calculated from the linear mixed effects model.
RNFL, retinal nerve fibre layer; MD, mean deviation