Visual performance linked to cognitive decline, white matter degeneration in PD

Patients with Parkinson’s disease and visual dysfunction had a higher risk for cognitive impairment and greater white matter degeneration compared with those without visual dysfunction, according to results published in Movement Disorders.
“The objectives of this study were to identify longitudinal white matter changes in patients with [PD] and low visual function and also in those who developed mild cognitive impairment,” Angeliki Zarkali, MBBS, a research fellow at the University College London, and colleagues wrote.
In a longitudinal cohort study, Zarkali and colleagues