Table 5

Comparison of the neuroretinal rim area (given as the percentage of the mean, for optic disc size, of the control group) for the two early glaucoma groups: converters from ocular hypertension (n = 14) and referrals from the glaucoma clinic (n = 39)

Rim area (%) converters77768083838179757779807877
Rim area (%) clinic patients7572697577757061 7280797675
  • p = 0.002 (independent samples t test, equal variances not assumed). WD = whole disc, ST = superotemporal, T = temporal, IT = inferotemporal, N = nasal.