The ability to adjust motor movements in response to visual information. People with Parkinson’s often have trouble with hand to eye coordination. Motor symptoms such as tremors, bradykinesia, and deterioration of fine motor skills contribute significantly, and visual disturbances further compound the difficulties. blepharospasm (muscle spasm of the eyelids) and rigidity affecting the muscles that control eye movements interfere with focus and with synchronized eye movement, both of which are essential for depth perception. Poor hand-to-eye coordination affects many everyday functions and interferes with activities from preparing and eating foods to getting dressed. A physical therapist or an occupational therapist can develop exercises to help maintain eye-to-hand coordination. Activities such as playing cards and board games are also effective and can be more enjoyable than performing exercises.