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Red light therapy for nearsighted kids: what happens when it stops?

NCT ID NCT07748546

Disease control Sponsor: The First Affiliated Hospital of Anhui Medical University Source: ClinicalTrials.gov ↗

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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 05, 2026 · Last updated Aug 06, 2026 · Updated 1 time

Summary

This trial studies children aged 8 to 16 who have used repeated low-level red light (RLRL) therapy for one year to control nearsightedness (myopia). Participants are randomly assigned to either continue the therapy, stop it completely, or gradually reduce it. The goal is to see how each approach affects eye growth and vision, specifically whether stopping causes a rebound effect that speeds up myopia progression. The findings could help doctors design better long-term treatment plans for children with myopia.

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 (RLRL) therapy, a device-based treatment using red light to slow myopia progression
What this could lead to
If successful, this trial could reveal the best way to stop or taper red light therapy without losing its benefits, helping children maintain better vision long-term.
What could go wrong
The trial is relatively small and focuses on a specific age group, so results may not apply to all children. There is also a risk that rebound effects occur regardless of how treatment is stopped.

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 159 people

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

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Jul 2028

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

8 to 16 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: 1. 8 to 16 years old 2. Rceived continuous RLRL treatment for 1 year (±1 month) without interruption. 3. Diagnosed with myopia (ciliary muscle paralysis SER ≥ -0.50 D), astigmatism ≤ 2.50 D, anisometropia ≤ 1.50 D, and bilateral best corrected visual acuity (BCVA) ≥ Snellen 20/20 before receiving RLRL treatment. 4. The consent of the guardian and the consent of the participant. Exclusion Criteria: 1. History of any ophthalmic surgery or ocular diseases (e.g., glaucoma, retinal disorders). 2. Systemic diseases that affect vision or eye health (e.g., diabetes). After discontinuing RLRL treatment, other myopia control interventions other than monocular glasses should be employed (including atropine, orthokeratology lenses, defocused/DOT lenses, etc.).

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Conditions

The condition(s) this trial relates to.

myopia

As listed by the trial registrant

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

Myopia Randomized controlled trial (RCT)

How to take part

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  1. 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 ↗

  2. 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.

More trials for these conditions

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