Parkinson's disease (PD) often causes shaking, stiffness, and slow movements. It can also make it hard for people to focus their eyes, leading to double vision. This study looks at **deep brain stimulation (DBS)**, a surgery where tiny electric signals are sent to the brain to help with these eye issues. Researchers will use special eye-tracking tools to see if DBS can help patients focus better, while still treating their motor symptoms. They'll connect these eye changes to the exact spot in the brain getting the signals. This could help find the best DBS spot for improving vision in PD patients.
- Study involves eye-tracking tests and DBS surgery evaluation.
- Participants need to have DBS surgery already and certain brain scans.
- No previous Parkinson's surgeries (except DBS) or untreated mental health issues allowed.
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