A practical approach to measuring the visual field component of fitness to drive

The present study aimed to determine the level of agreement between the measured visual fields when using the binocular Esterman test and when using the Integrated Visual Field test (IVF), a newly developed measurement technique using merged bilateral monocular visual fields. The agreement between the results of the two tests was judged in relation to classifying patients' visual status for UK legal fitness to drive. The study also aimed to examine the link between performance of these two tests and safe driving by assessing the association between visual field defect measurements obtained using each method and the performance on the Useful Field of View (UFOV), which is considered to be a surrogate for the visual capability for safe driving This study shows that Integrated Visual Field test agrees well with the current method (the Esterman test) of classifying visual fields with regard to legal fitness to drive in the UK. The IVF appears superior to the current method in identifying those with reduced fitness to drive as measured by the Useful Field of View. Therefore, the Integrated Visual Field test could perform a valuable screening or diagnostic role in the assessment of glaucoma patients' fitness to drive.

• Record URL:
  • http://www.dft.gov.uk/pgr/roadsafety/research/rsrr/theme6/
• Corporate Authors:

  Great Britain. Department for Transport

  London,    
• Authors:
  • Crabb, D P
  • Viswanathan, A C
  • Fitzke, F W
  • Hitchings, R A
• Publication Date: 2004-3

Language

• English

Media Info

• Pagination: 27p
• Serial:
  • Issue Number: 49

Subject/Index Terms

• TRT Terms: Decision making; Diseases and medical conditions; Highway safety; Impaired drivers; Medical examinations and tests; Test procedures; Vision; Vision tests
• Uncontrolled Terms: Road safety (human factors)
• Geographic Terms: United Kingdom
• ATRI Terms: Decision process; Fitness to drive; Illness; Medical examination; Road safety; Test method; Visual acuity; Visual performance
• Subject Areas: Safety and Human Factors;

Filing Info

• Accession Number: 01388741
• Record Type: Publication
• Source Agency: ARRB
• Files: ATRI
• Created Date: Aug 23 2012 1:15AM