VISUAL FUNCTIONS IN RELATION TO ROAD ACCIDENTS

This paper is concerned with the part played by the eye defects of drivers in relation to accidents. It is pointed out that all types of medical factors only account for 1.5 per cent of road accidents. Reference is made to Sir Stewart Duke-Elder's comment at the 1953 congress that efforts to raise visual standards were unjustified and Elliott's finding that only 49 of 5,895 accidents were attributable to a visual defect, and that these were due to dazzling: Elliot's recommendations for visual acuity, visual fields, night vision, glare and depth perception are outlined. Mention is made of publications by Norman and Victor Byrnes correspondence in the British Medical Journal and the Minister of Transports (1965) reply to a question in the House of Commons. A discussion is presented of the conclusions reached by Dr. T.J. Hunt in a report to the medical commission on vision and road accidents. The remainder of the paper describes work carried out by the author in relation to present visual standards and the effect of visual defects on accidents. Tests included visual acuity, visual fields, stereoscopic vision, colour vision, cover test, ocular movements, alternating convergence and objective convergence. These showed that 12 of the accident group studied revealed no abnormality and 18 revealed an abnormality, whereas 8 of a control group were normal and 22 had an abnormality. These results are discussed in the light of the small size of the samples studied and the hazards in driving for drivers with normal vision. The author concludes that there is no evidence so far that indicates that eye defects in drivers have an effect on road accidents. /TRRL/

  • Corporate Authors:

    Churchill (J&A), Limited

    Gloucester Place 104
    London W I,   England 
  • Authors:
    • Cashell, GTW
  • Publication Date: 1966

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Filing Info

  • Accession Number: 00127806
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Dec 3 1975 12:00AM