Evelyn Cass, of Broadpark, Okehampton, is accused of causing serious injury by dangerous driving to pedestrian Christopher Park in April 2019 on the A382 at Chagford.
Judge David Evans set a trial date of June 29 when Cass appeared at Exeter Crown Court for the first time. He set a timetable for the progress of the case.
Evelyn Cass pleaded not guilty when she appeared before Exeter magistrates last month but she was not asked to confirm her plea at a plea and trial preparation hearing at crown court.
Ian Graham, defending, said an expert report is to be obtained which may show that the defendant would have had only two seconds to react before the collision.
Mr Park suffered a fractured skull and bleeding on the brain in the accident. He is now in a neuro rehabilitation centre learning to walk and talk again.