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Vision, aging, and driving: the problems of older drivers
D W Kline1, T J Kline, J L Fozard
1University of Calgary, Canada.
Journal of Gerontology
|January 1, 1992
Summary
Visual declines with age significantly impact driving and daily tasks for older adults. This research highlights specific visual challenges, like processing speed and light sensitivity, affecting everyday activities.
Area of Science:
- Gerontology
- Ophthalmology
- Human Factors Engineering
Background:
- Age-related visual decline is well-documented but its impact on real-world tasks remains unclear.
- Older adults face challenges in daily activities, with driving being a significant concern.
Purpose of the Study:
- To investigate the relationship between aging, visual functioning, and difficulties in everyday tasks, particularly driving.
- To identify specific visual dimensions affected by aging that contribute to task performance issues.
Main Methods:
- Surveyed adults aged 22-92 about visual difficulties during driving and daily activities.
- Assessed visual functioning across multiple dimensions, including processing speed, light sensitivity, and dynamic vision.
Main Results:
- Driving-related visual problems increased with age across five dimensions: unexpected vehicles, speed perception, dim displays, windshield visibility, and sign reading.
- Replicated previous findings of age-related visual declines in non-driving tasks, including visual processing speed, light sensitivity, dynamic vision, near vision, and visual search.
- Identified correlations between age-related visual problems and common accident types among older drivers.
Conclusions:
- Visual aging significantly affects performance in naturalistic tasks like driving.
- Specific visual deficits associated with aging present targets for interventions to improve safety and independence for older adults.
- Further research into visual aging's effects on real-world tasks is warranted.