Assessment	Tests	Findings
Cognitive 20–24	Clock drawing Maze test Montreal Cognitive Assessment Trails A and B	Cognitive testing is performed to assess information processing ability, memory, visual-spatial skills, psychomotor coordination, and attention. Several studies have shown that poor cognitive performance is associated with poor driving performance.8,25,26
Motor and sensory function	Rapid Pace Walk test (measures gross proprioception and lower extremity strength) Short Physical Performance Battery test (used for quantifying lower extremity function in older adults)27,28 Consider performing a functional range of motion specific to the driving task (e.g., lateral rotation of the head necessary for parking, finger curl necessary for steering wheel control, plantar flexion necessary to push the accelerator)29	Limitation in these abilities should prompt evaluation by a driver rehabilitation specialist for possible adaptive mechanisms or equipment that may assist drivers and enable them to continue driving. Timed Up-and-Go test was not shown to be a useful predictor for negative driving outcomes.27 Evidence is mixed regarding the effects of strength and range of motion deficits in older drivers on driving outcomes; some studies noted that reduced neck range of motion, with vision deficits, could be linked to difficulty navigating intersections.30,31
Vision	Visual acuity (Snellen chart) Visual field (confrontation test) Contrast sensitivity (requires referral to an ophthalmologist's office)7	Visual acuity is the most commonly requested test by state authorities and typically has a cutoff of 20/40.7 If any abnormality of vision is identified, the patient should be referred to an ophthalmologist for further evaluation and treatment.