PURPOSE. To evaluate the association between the diagnosis of glaucoma and motor vehicle collision (MVC) involvement and driving avoidance in drivers aged ≥ 50 years. METHODS. Two groups of patients, one with glaucoma and one without, were identified in three university- affiliated eye care practices. Demographic, clinical, and driving characteristics were obtained by chart abstractions and a patient survey. Information regarding MVC involvement was obtained from police records. RESULTS. Patients with glaucoma were less likely (relative risk [RRAbstract, 0.67; 95% confidence interval [CIAbstract, 0.47- 0.97) to be involved in collisions than patients without glaucoma. There was no difference between the at- fault crash rates of the patients with glaucoma and those without (RR, 1.22; 95% CI, 0.67- 2.22). Patients with glaucoma had significantly higher levels of avoidance for driving at night (odds ratio [ORAbstract, 2.06; 95% CI, 1.11- 3.82), driving in fog (OR, 3.80; 95% CI, 1.93- 7.48), driving in the rain (OR, 2.99; 95% CI, 1.32- 6.76), driving during rush hour (OR, 2.24; 95% CI, 1.16- 4.34), driving on the highway (OR, 2.81; 95% CI, 1.19- 6.64), and high density driving (OR, 2.88; 95% CI, 1.28- 6.46). These associations were adjusted for demographic and medical characteristics as well as visual acuity. CONCLUSIONS. Older persons with glaucoma drive at least as safely as, if not more safely than, older persons without glaucoma.
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