A recent U.S. study has found that ‘a decrease in vision function’ was a key factor in older motorists voluntarily giving up driving. Although in Australia, there are legal restrictions on older drivers, in the U.S., with 30 million motorists over the age of 65, it is up to the individual to decide if he or she can no longer drive safely. The Salisbury Eye Evaluation and Driving Study (SEEDS) looked at changes in vision, cognition and the general health status of more than 1,200 licensed drivers aged 67 to 87. They found the most common predictors of stopping or decreasing driving were slow visual scanning and psychomotor speed.
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