Assessment of Pupil Light Responses in Patients With Parkinson Disease

Parkinson diseases (PD) is the second most common degenerative disease of the central nervous system. The development of early diagnostic biomarkers may help identify at-risk individuals and allow precocious interventions at the onset of disease and more precise monitoring of therapies that may slow disease progression. Proof of concept studies indicated significant differences in pupil light response between PD patients and healthy controls. The feasibility of using pupillometry for assesment of PD will be examined.