title: Significance of visual problems in Pennsylvania drivers.
mesh_terms: D000063:Accidents, Traffic / Q000517:prevention & control; D001334:Automobile Driving; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D010414:Pennsylvania; D010808:Physical Examination; D014786:Vision Disorders / Q000175:diagnosis; D014787:Vision Tests