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Curr Eye Res. 2011 Mar;36(3):270-7. doi: 10.3109/02713683.2010.548893. Epub 2011 Jan 28.

Self-reported driving difficulty by persons with hemianopia and quadrantanopia.

Author information

1
School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294-0009, USA. parkewt@uab.edu

Abstract

PURPOSE:

To compare self-reported driving difficulty by persons with hemianopic or quadrantanopic field loss with that reported by age-matched drivers with normal visual fields; and to examine how their self- reported driving difficulty compares to ratings of driving performance provided by a certified driving rehabilitation specialist (CDRS).

METHOD:

Participants were 17 persons with hemianopic field loss, 7 with quadrantanopic loss, and 24 age-matched controls with normal visual fields, all of whom had current driver's licenses. Information was collected via questionnaire regarding driving difficulties experienced in 21 typical driving situations grouped into three categories (involvement of peripheral vision, low visibility conditions, and independent mobility). On-road driving performance was evaluated by a CDRS using a standard assessment scale.

RESULTS:

Drivers with hemianopic and quadrantanopic field loss expressed significantly more difficulty with driving maneuvers involving peripheral vision and independent mobility, compared to those with normal visual fields. Drivers with hemianopia and quadrantanopia who were rated as unsafe to drive based upon an on-road assessment by the CDRS were no more likely to report driving difficulty than those rated as safe.

CONCLUSION:

This study highlights aspects of driving that hemianopic or quadrantanopic persons find particularly problematic, thus suggesting areas that could be focused on driving rehabilitation. Some drivers with hemianopia or quadrantanopia may inappropriately view themselves as good drivers when in fact their driving performance is unsafe as judged by a driving professional.

PMID:
21275522
PMCID:
PMC3581322
DOI:
10.3109/02713683.2010.548893
[Indexed for MEDLINE]
Free PMC Article
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