Neck posture may alter eye tracking, new test aims to find out
NCT ID NCT06634576
First seen Aug 28, 2026 · Last updated Aug 28, 2026
Summary
Researchers are testing a custom eye-tracking system to see if neck posture affects smooth pursuit, the ability to follow a moving object with your eyes. The study includes healthy adults and people with upper neck pain, comparing eye movement accuracy across seven different neck positions. The goal is to determine whether this system reliably measures eye-tracking changes linked to neck-related sensorimotor issues, which could help diagnose conditions like cervicogenic dizziness.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- A custom eye-tracking system that measures smooth pursuit eye movements while the neck is positioned in seven different postures, plus a visual analogue scale for pain and a craniovertebral angle measure for forward head posture.
- What this could lead to
- If the system proves reliable, it could become a tool for spotting eye-movement changes linked to neck-related dizziness or pain, offering a new way to assess cervical sensorimotor problems.
- What could go wrong
- This is an early, small study focused on measurement reliability, not treatment. The findings may not apply to broader populations, and the system's accuracy in real-world clinical use remains unproven.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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40 people
The number who actually took part.
- Started
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Apr 2024
- Finished
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Dec 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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20 to 60 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Age between 20 and 60 years. 2. No history of significant neck surgeries. 3. No history of corrective eye surgery. 4. No skeletal muscle injuries or pain in the upper or lower limbs. 5. Free from vestibular system-related disorders and neurological symptoms. 6. Participants must avoid food and drink for 3 hours before the experiment. 7. Participants should have 8 hours of sleep the night before the experiment. Exclusion Criteria: 1. Any participant who has undergone vision correction surgery in the last year. 2. Any participant who has experienced significant head or neck trauma in the past year. 3. Any participant with a history of vestibular system disorders or neurological symptoms. 4. Participants who have used medications or alcohol for an extended period. 5. Participants with abnormal pain in any part of the torso. 6. Individuals suffering from claustrophobia.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Kaohsiung Medical University
Kaohsiung City, Sanmin District, 807378, Taiwan
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