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Red light therapy shows promise for Kids' eyesight

NCT ID NCT07104513

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study looks at whether using a special red light device twice a day can help prevent or control nearsightedness (myopia) in children aged 5 to 16. Researchers are following 3,000 kids who have used the therapy for at least a year, some for up to three years or more. The goal is to see how well it works over time and what factors, like how consistently it's used, affect the results.

What this could mean

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

Active substance
repeated low-level red-light therapy (device)
What this could lead to
If successful, this could provide a non-invasive, drug-free option to slow or prevent myopia progression in children, reducing the need for glasses or contacts.
What could go wrong
This is an observational follow-up study, not a randomized trial, so results may be influenced by individual differences and compliance. Long-term safety and effectiveness are still being evaluated.

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.

Participants

About 3,000 people

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

Started

Sep 2020

Expected to finish

Jul 2030

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.

Who is studied

5-16 years old, 500

Ages

5 to 16 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: 1. Ages 5 to 16, gender unrestricted; 2. RLRL device usage duration of one year or more. Exclusion Criteria: * Children with obvious strabismus and amblyopia * With congenital eye disease, such as congenital cataract, congenital retinal disease * Secondary myopia (such as premature retinopathy or other eye diseases in infants and children caused secondary myopia), or myopia combined with systemic syndrome (such as Marfan syndrome) * Had internal eye surgery (such as cataract extraction, intraocular lens implantation, anti-glaucoma surgery, etc.) * Refractive medium opacity (such as corneal disease, crystal opacity, etc.) * Bnormal intraocular pressure and clinical significance (IOP \<10 mmHg or IOP \>21mmHg or binocular IOP difference ≥5mmHg) * Fundus chorioretinopathy (except for high myopia fundus degenerative changes) or other intraocular diseases * Optic nerve damage or congenital optic nerve dysfunction * Can not be regularly checked * The adjustment range is less than 8D or obvious near difficulties * Other reasons researchers think it is not suitable for inclusion in researchers

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • Tianjin Medical University Eye Hospital

    Tianjin, Tianjin Municipality, 120120, China

  • Tianjin Medical University Eye Hospital

    Tianjin, China

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Other studies related to the condition(s) this trial covers.