Comparison of demographic, driving and vision characteristics of collision-involved and collision-uninvolved patients
| Normal control (n=43) | Glaucoma (n=95) | |||||
|---|---|---|---|---|---|---|
| Collisions in DS | Collisions in DS | |||||
| No (n=32) | Yes (n=11) | p Value | No (n=19) | Yes (n=76) | p Value | |
| Demographic | ||||||
| Age (years) | 53.8±8.0 | 53.2±9.6 | 0.804* | 53.9±8.4 | 58.2±7.3 | 0.050* |
| Sex (male/female) | 20/12 | 5/6 | 0.480† | 13/6 | 54/22 | 0.786† |
| Driving | ||||||
| Driving experience (years) | 30.8±9.9 | 30.7±10.1 | 0.990* | 32.8±9.1 | 34.6±8.3 | 0.441* |
| Driving exposure time (hours/week) | 9.8±10.2 | 6.0±7.8 | 0.526* | 9.8±10.2 | 6.0±7.8 | 0.116* |
| Number of MVAs | 3 (9.4%) | 2 (18.1%) | 0.589† | 4 (21.1%) | 13 (17.1%) | 0.740† |
| Mean visual acuity (logMAR) | ||||||
| Better eye | −0.08±0.02 | −0.07±0.03 | 0.240* | −0.09±0.04 | −0.03±0.08 | <0.001* |
| Worse eye | −0.07±0.03 | −0.03±0.12 | 0.358* | 0.17±0.42 | 0.17±0.38 | 0.978* |
| HFA 24-2 mean deviation (dB) | ||||||
| Better eye | 0.36±1.0 | −0.19±0.8 | 0.133‡ | −16.2±3.3 | −18.70±4.9 | 0.055‡ |
| Worse eye | −0.34±1.1 | −1.0±1.0 | 0.132‡ | −21.1±4.5 | −23.01±5.0 | 0.132‡ |
| IVF mean sensitivity (dB) | ||||||
| Superior IVF0–12 | 33.1±0.7 | 32.4±1.3 | 0.318‡ | 15.3±9.6 | 12.2±9.3 | 0.221‡ |
| Inferior IVF0–12 | 31.5±0.9 | 32.7±1.4 | 0.340‡ | 23.9±6.1 | 18.6±8.8 | 0.012‡ |
| Superior IVF13–24 | 30.3±1.3 | 29.6±0.9 | 0.205‡ | 15.5±8.0 | 13.9±7.3 | 0.500‡ |
| Inferior IVF13–24 | 31.6±0.9 | 31.3±1.1 | 0.589‡ | 20.7±6.2 | 16.9±7.4 | 0.034‡ |
| IVF sectors mean sensitivity (dB) | ||||||
| VFA | 9.2±10.9 | 9.0±10.8 | 0.772‡ | |||
| VFB | 15.5±12.1 | 12.0±10.6 | 0.237‡ | |||
| VFC | 21.3±9.2 | 15.7±11.5 | 0.096‡ | |||
| VFD | 24.2±6.9 | 20.1±9.6 | 0.086‡ | |||
| VFE | 27.3±6.3 | 22.1±9.8 | 0.024‡ | |||
| VFF | 20.2±9.9 | 13.6±11.7 | 0.041‡ | |||
Values are mean±SD.
*p indicates unpaired t-test.
†p indicates Fisher's exact test.
‡p indicates Mann-Whitney U test.
DS, driving simulator; HFA, Humphrey Visual Field Analyzer; IVF, integrated visual field; logMAR, logarithm of the minimum angle of resolution; MVA, motor vehicle accident.