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Related Experiment Videos

Visual function, driving safety, and the elderly.

J L Keltner1, C A Johnson

  • 1Department of Ophthalmology, University of California at Davis 95616.

Ophthalmology
|September 1, 1987
PubMed
Summary
This summary is machine-generated.

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Older drivers often have vision issues impacting driving safety. Licensing should assess functional vision, not just age, to reduce accidents.

Area of Science:

  • Ophthalmology
  • Gerontology
  • Traffic Safety

Background:

  • Elderly drivers experience increased vision problems affecting visual acuity and peripheral fields.
  • While involved in fewer accidents overall, older drivers' crashes often involve complex scenarios like intersection collisions and left turns, potentially linked to visual field deficits.

Purpose of the Study:

  • To investigate visual standards, accident data, and conviction rates across age groups.
  • To review existing literature on visual function and its relation to traffic safety.
  • To propose recommendations for evaluating and licensing elderly drivers based on functional abilities.

Main Methods:

  • Surveyed Departments of Motor Vehicles in all 50 states, DC, and Puerto Rico.
  • Collected data on visual standards, accidents, and convictions by age group.

Related Experiment Videos

  • Conducted a literature review on visual function and traffic safety.

    • Main Results:

    • Elderly drivers exhibit a higher prevalence of vision impairments, including reduced visual acuity and peripheral vision loss.
    • Specific accident types common among older drivers (e.g., failure to yield, intersection collisions) may correlate with visual field issues.
    • Individual rates of age-related performance decline necessitate a shift from age-based to functional ability-based driver licensing.

    Conclusions:

    • Periodic vision evaluations (visual acuity and fields) every 1-2 years are recommended for individuals over 65.
    • Drivers of any age with a history of multiple accidents or violations should undergo vision assessments.
    • A system for physician reporting of patients with potentially unsafe visual function is needed to enhance road safety.