Yoga Training and Retinal Vasculature With Parkinson's Disease

Participants in this group will receive in-person high-speed yoga with cuing 3 times per week for 24 consecutive weeks for a total of 72 training sessions of 1 hour duration. Subjects will move as quickly as possible from one pose to another.

Participants will perform in-person controlled speed Hatha yoga 3 times per week for 24 weeks for a total of 72 sessions of 1 hour duration.