Table 3: Characteristics of 53 licensed drivers, aged 18 to 59 years, who do not meet the visual function requirements.
| Characteristics | Current drivers (n = 34) | Gave up driving due to visual impairment (n = 19) |
p-value |
| Males, n (%) | 21 (61.8) | 10 (52.6) | NS |
| Caucasians, n (%) | 31 (91.2) | 18 (94.7) | NS |
| Age groups (in years), n (%) | NS | ||
| 18-29 | 3 (6.8) | 3 (15.8) | |
| 30-39 | 5 (14.7) | 3 (15.8) | |
| 40-49 | 7 (20.6) | 4 (21.1) | |
| 50-59 | 19 (55.9) | 9 (47.3) | |
| Mean patient age (years ± SD) | 47.5 ± 10.6 | 44.6 ± 10.9 | NS |
| Education level, n (%) | NS | ||
| Primary or less | 5 (14.7) | 2 (10.5) | |
| Secondary | 10 (29.4) | 8 (42.1) | |
| Tertiary of higher | 19 (55.9) | 9 (47.3) | |
| Employment status, n (%) | 0.015 | ||
| Student Never worked |
2 (5.9) 8 (23.5) |
5 (26.3) 9 (47.3) |
|
| Worker | 21 (61.8) | 4 (21) | |
| Retired | 3 (8.8) | 1 (5.3) | |
| Marital status, n (%) | NS | ||
| Single or without a partner who drives | 30 (88.2) | 15 (78.9) | |
| With a partner who drives | 4 (11.8) | 4 (21.1) | |
| Time interval between last ophthalmological examination and the study visit (years) |
< 0.001 | ||
| < 1 | 1 (2.9) | 14 (73.7) | |
| > 1 and < 5 | 11 (32.4) | 5 (26.3) | |
| > 5 | 22 (64.7) | 0 (0) | |
| Far vision corrective lenses, n (%) | 18 (52.9) | 9 (47.3) | NS |
| Access to public transport, n (%) | 12 (35.3) | 13 (68.4) | 0.021 |
| Resort to acquaintances, n (%) | 10 (29.4) | 17 (89.5) | 0.001 |
| Access to shops, n (%) | 13 (38.2) | 18 (94.7) | |
| Self-reported central vision impairment, n (%) | 11 (32.4) | 14 (73.7) | 0.004 |
| Self-reported peripheral vision impairment, n (%) | 3 (8.8) | 7 (36.8) | 0.012 |
| Mean visual acuity (logMAR units ± SD) | |||
| Right eye | 0.37 ± 0.56 | 0.41 ± 0.50 | NS |
| Left eye | 0.34 ± 0.63 | 0.45 ± 0.56 | NS |
| Binocular | 0.31 ± 0.60 | 0.33 ± 0.63 | NS |
| Esterman visual field score | 80% | 73% | NS |
NS: Not Significant.