Binocular Visual Field Impairment in Glaucoma and At-Fault Motor Vehicle Collisions

• DOI: 10.1097/ijg.0b013e3182a0761c
• Publication Date: 2013-07-16T11:22:39Z
• Authors: Gerald McGwin; Carrie Huisingh; Shelly G. Jain; Christopher A. Gi...; Cynthia Owsley
• Keywords: Quartile; Monocular

To evaluate the association between binocular visual field defects in drivers with glaucoma and risk of motor vehicle collision (MVC) involvement.A retrospective cohort study was conducted on 438 aged 55 years or older using data from 1994 through 2000. Demographic, clinical, driving characteristics were obtained chart abstractions patient survey. Binocular measures generated by combining monocular (central 24-degree radius) fields whereby measure defined as more sensitive point at each location. Measures included threshold (TH), total deviation (TD), pattern (PD); severe impairment these falling into worst quartile. MVC police records. Rate ratios (RR) 95% confidence intervals (CI) calculated.Drivers severely impaired PD twice likely to have an at-fault compared those not (RR, 2.13; CI, 1.21-3.75); TH 1.49; 0.81-2.74) TD 1.50; 0.82-2.74) also had increased rate MVCs, although significant. When central stratified 9 regions, TH, TD, similarly elevated rates all regions impaired, though reached statistical significance.On basis clinical routinely used management glaucoma, a higher less unimpaired fields.