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New study tests if colored lights can ease head injury light sensitivity

NCT ID NCT07606300

Symptom relief Sponsor: Ohio State University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether daily training with colored lights can reduce light sensitivity in people who have had a traumatic brain injury. Twenty participants will use a device at home for 20 minutes a day, first with a blue light and then with a red light, or vice versa. Researchers will measure pupil responses and symptoms every 6 weeks to see if one color works better.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
fixation training with colored light targets
What this could lead to
If it works, this could provide a simple, at-home method to reduce light sensitivity after a head injury.
What could go wrong
This is a very small early study with only 20 participants, so results may not apply to everyone. The treatment is behavioral and may not work better than a placebo.

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

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

About 20 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2005

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

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

18 to 80 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show 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: * 18 to 80 years old and subjects able to consent for themselves * Completion of first session in entirety (participants who cannot complete the entire first visit will be considered as a screen fail) * Best-corrected visual acuity of at least 20/32 in both the right and left eyes, and 20/25 using both eyes * Prior head injury with current photophobia - A mild or moderate TBI occurring at least 3 months prior to visit, verified by a score of 2, 3 or 4 on OSU-TBI survey, and participant reports having experienced greater light sensitivity since their head injury Exclusion Criteria: * Pregnancy or suspected pregnancy - based on self-report * Previous history of neurodegenerative disease (e.g. Alzheimer's, Parkinson's, multiple sclerosis, myasthenia gravis, seizures) * History of pathology of the retina and optic nerve (includes retinal tears, diabetic retinopathy, glaucoma, macular degeneration, optic nerve atrophy) * Currently on cholinergic medications, which affect pupil responses * Prior participation in fixation training sessions within the past 2 years * Experiencing a migraine during visit * Prior history of severe TBI (score of 5 or 6 on OSU-TBI survey)

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Conditions

The condition(s) this trial relates to.

Brain Concussion Brain Injuries, Traumatic Photophobia traumatic brain injury

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Traumatic brain injury (TBI) patients

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • College of Optometry

    RECRUITING

    Columbus, Ohio, 43210, United States

More trials for these conditions

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