Measures of vision and cognition assessed in studies
| Outcome measures | No of studies |
| Cognition (n, %) | |
| Objective assessment n=89 (81%) | |
| MMSE | 42 (47%) |
| MoCA | 5 (6%) |
| Global cognition scale | 6 (7%) |
| Others | 36 (40%) |
| Other assessment methods n=13 (12%) | |
| Self-report | 4 (31%) |
| ICD diagnosis/from records | 9 (69%) |
| Combination of Objective+Subjective (5%) | 7 |
| No info (<1%) | 1 |
| Vision (n, %) | |
| Objective n=66 (70%) | |
| Acuity | 42 (65%) |
| Acuity+others | 16 (23%) |
| Others | 8 (12%) |
| Other assessment methods n=34 (22%) | |
| Self-report | 24 (71%) |
| ICD diagnosis/from records | 10 (29%) |
| Combination of Objective+Subjective (7.5%) | 8 |
| No info (<1%) | 2 |
MMSE, Mini-Mental State Examination; MoCA, Montreal-Cognitive Assessment.