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Pupil dilatation does affect some aspects of daytime driving performance

Wood, Joanne M., Garth, D., Grounds, G., McKay, P., & Mulvahil, A. (2003) Pupil dilatation does affect some aspects of daytime driving performance. The British Journal Of Ophthalmology, 87(11), pp. 1387-1390.

Abstract

AIMS: To examine the effects of pupil dilatation on driving performance and determine whether this was related to changes in standard measures of visual function. METHODS: The driving and vision performance of 16 young, visually normal participants was measured with both normal and dilated pupils. Pupils were dilated with 1% tropicamide. Driving performance was measured under daytime conditions on a closed road circuit that was free of other vehicles and has been used in previous studies of driving performance. Measures included road sign detection and recognition, hazard detection and avoidance, gap perception and negotiation, driving reaction times and time to complete the circuit. Visual performance measures included high contrast visual acuity, Pelli-Robson letter contrast sensitivity, and glare sensitivity. RESULTS: Pupil dilatation significantly (p<0.05) decreased the ability of participants to recognise low contrast hazards and avoid them, decreased their visual acuity and contrast sensitivity and increased glare sensitivity. The decreases in vision performance were not, however, significantly related to the decrement in driving performance. CONCLUSION: Pupil dilatation can impair selected aspects of driving and vision performance and patients should be cautioned about these possible effects.

Impact and interest:

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13 citations in Web of Science®

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315 since deposited on 16 Jan 2008
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ID Code: 12005
Item Type: Journal Article
Additional URLs:
ISSN: 0007-1161
Subjects: Australian and New Zealand Standard Research Classification > COMMERCE MANAGEMENT TOURISM AND SERVICES (150000) > TRANSPORTATION AND FREIGHT SERVICES (150700) > Road Transportation and Freight Services (150703)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300) > Vision Science (111303)
Divisions: Current > Research Centres > Centre for Health Research
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Optometry & Vision Science
Copyright Owner: Copyright 2003 BMJ Publishing Group
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 16 Jan 2008
Last Modified: 09 Jun 2010 22:54

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