Clinical Study
A Pilot Evaluation of On-Road Detection Performance by Drivers with Hemianopia Using Oblique Peripheral Prisms
Table 4
Participants’ experiences of using real prism glasses and clinical decision.
| Hours per day, median (range) | 4.5 (1–12) | Moderately or very helpful for obstacle avoidance when walking, % () | 58 (7/12) | Moderately or very helpful for driving, % () | 75 (9/12) | Main ways in which helpful when driving, % ()† | | Seeing blindside traffic | 30 (8/27) | Provided warning | 22 (6/27) | Merging/intersections | 15 (4/27) | More confident | 7 (2/27) | Other | 19 (5/27) | Unable to explain | 7 (2/27) | Difficulties using prisms when driving, % () | | None | 50 (6/12) | Initially (learn to use and interpret images) | 25 (3/12) | Busy places, rotaries | 17 (2/12) | No response | 8 (1/12) | Clinical decision % () | | Continue walking and driving | 83 (10/12) | Continue walking only | 8 (1/12) | Discontinue use | 8 (1/12) |
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† as participants made more than one response (open-ended question).
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