Response group demographic and outcome parameters
| Risk factor | NTG | HTG | P value |
| Cohort size (n) | 144 | 146 | |
| Age (years, mean (SD)) | 78.6 (9.5) | 77.3 (9.9) | 0.26 |
| Sex (m:f) (percentage male) | 56:88 (39%) | 53:93 (36%) | 0.72 |
| Ethnicity (European:Asian) | 142:2 | 145:1 | 0.62 |
| Stroke history | 14 (10%) | 18 (12%) | 0.58 |
| Smoker | 31 (22%) | 39 (26%) | 0.87 |
| Diabetes | 23 (16%) | 22 (15%) | 0.87 |
| Hypertension | 70 (49%) | 88 (60%) | 0.06 |
| Psychiatric history | 7 (5%) | 6 (4%) | 0.79 |
Clinical data including history of stroke, smoking, diabetes, hypertension and psychiatric history were self-reported immediately prior to T-MoCA assessment; p values were determined using independent-sample unpaired t-tests and Fisher’s exact tests.
HTG, high tension glaucoma (maximum intraocular pressure ≥25 mm Hg); NTG, normal-tension glaucoma (maximum recorded intraocular pressure ≤21 mm Hg); T-MoCA, Telephone Version of the Montreal Cognitive Assessment.