Visual Field Defects and the Risk of Motor Vehicle Collisions among Patients with Glaucoma

This study sought to evaluate the association between visual field defects in the central 24° field and motor vehicle collisions (MVC) among patients with glaucoma. A case-control study was conducted on glaucoma patients aged 55 and older being treated at three university-affiliated eye care practices. Cases were patients who sustained a police-reported motor vehicle collision (MVC); controls were those who did not experience a MVC. For each patient, an Advanced Glaucoma Intervention Study (AGIS) score was calculated on automated visual fields collected with the 24-2 or 30-2 programs. Additionally, demographic, behavioral, driving and clinical characteristics were obtained via chart abstractions and a patient telephone survey. With respect to the better eye AGIS score (defined according to AGIS score), compared to patients with no visual field defect, those with severe defects (scores 12-20) had an increased risk of MVC (odds ratio [OR] 3.2, 95% confidence interval [CI] 0.9-10.4), although this association was not statistically significant (p=0.0576). Moderate (6-11) or minor field defects (1-5) in the better eye were not associated with the risk of crash involvement. For the worse eye, patients with moderate and severe field defects were at significantly increased risk of a MVC (OR 3.6, 95% CI 1.4-9.4 and OR 4.4, 95% CI 1.6-12.4 respectively) compared to those with no defects. Minor field defects in the worse eye did not increase MVC risk (OR 1.3, 95% CI 0.5-3.4). Glaucoma patients with moderate or severe visual field impairment in the central 24° radius field in the worse functioning eye are at increased risk for involvement in a vehicle crash.

• Record URL:
  http://www.ncbi.nlm.nih.gov/pubmed/16303931
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780874141511
• Corporate Authors:

  University of Iowa, Iowa City

  Public Policy Center
  227 South Quadrangle
  Iowa City, IA  United States  52242-1192
• Authors:
  • McGwin Jr, Gerald
  • Xie, Aiyuan
  • Mays, Andrew
  • Joiner, Wade
  • DeCarlo, Dawn K
  • Hall, Tyler Andrew
  • Owsley, Cynthia
• Conference:
  • Driving Assessment 2005: 3rd International Driving Symposium on Human Factors in Driver Assessment, Training, and Vehicle Design
  • Location: Rockport Maine, United States
  • Date: 2005-6-27 to 2005-6-30
• Publication Date: 2005

Language

• English

Media Info

• Media Type: Web
• Features: References; Tables;
• Pagination: 9p
• Monograph Title: Proceedings of the 3rd International Driving Symposium on Human Factors in Driver Assessment, Training, and Vehicle Design, Rockport, Maine, June 27-30, 2005

Subject/Index Terms

• TRT Terms: Behavior; Crash risk forecasting; Defects; Demographics; Diseases and medical conditions; Drivers; Driving; Eye; Field of vision; Highway safety; Traffic crashes; Traffic safety
• Uncontrolled Terms: Glaucoma
• Subject Areas: Highways; Safety and Human Factors; Society; I83: Accidents and the Human Factor;

Filing Info

• Accession Number: 01006748
• Record Type: Publication
• ISBN: 9780874141511
• Files: TRIS
• Created Date: Oct 31 2005 4:22PM