Plain-English translation of NCT06857851 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Read our Parkinson's Disease research guide →Many people with Parkinson's disease experience vision problems—like difficulty focusing at different distances, eye misalignment that causes double vision, or trouble moving both eyes smoothly together. This study is examining how deep brain stimulation (DBS), a surgery where devices are already implanted in the brain to help with Parkinson's symptoms, can be adjusted to specifically improve these eye movement and focusing problems. The researchers will use specialized eye-tracking equipment to measure how the stimulation affects your vision and eye coordination.
Current Parkinson's treatments are very good at reducing tremor, stiffness, and slow movement, but they do little to help vision problems. Eye surgery isn't a good long-term solution because Parkinson's continuously changes the brain. This study aims to find the best way to adjust existing brain stimulation devices to target and improve vision problems that affect quality of life.
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As a participant, you would visit the research team for detailed eye movement and vision testing using advanced equipment. The researchers will examine how your eyes focus at different distances and how well they work together, and they will correlate these measurements with the exact location of your brain stimulation. You do not receive surgery or have your device settings changed during the study—instead, the team studies how your current optimized stimulation affects your vision and eye coordination.
AI-generated summary from trial data · Jul 16, 2026 · Not medical advice
United States