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Can red light stop severe nearsightedness from worsening in adults?

NCT ID NCT07412678

Disease control Sponsor: Beijing Tongren Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests if low-intensity red light therapy can slow or stop the worsening of high and extreme myopia (severe nearsightedness) in adults aged 18 to 45. The treatment has shown promise in children, but its effects in adults are unknown. The goal is to prevent vision loss and blindness caused by progressive myopia.

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 128 people

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

Expected to start

Feb 2026

An estimate. Start dates often move.

Expected to finish

Mar 2027

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 45 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: Aged 18 to 45 years old. Spherical equivalent refraction of -6.00D to -20.00D in one or both eyes measured by cycloplegic computer optometry. Intraocular pressure (IOP) ranging from 10 to 21 mmHg. Clear crystalline lens (cataract excluded). No active ocular inflammation, history of ocular trauma or surgery, and no ocular or systemic organic diseases that affect visual acuity changes. Voluntarily participate in the study and sign the informed consent form. Willing to use the Tongren Myopia and Amblyopia Therapeutic Apparatus (Patent No.: 202022533301.4, manufactured by Hunan Yifan Technology Co., Ltd.) or accept the above-mentioned control treatment. Exclusion Criteria: Patients with the following ocular diseases: choroidal neovascularization, macular hemorrhage, macular schisis, extensive chorioretinal atrophy, and refractive media opacity (such as corneal lesions, lens opacity, etc.). Subjects with systemic or immune diseases that affect compliance, including tumors, heart diseases (with implanted electronic devices such as cardiac pacemakers), severe hepatic and renal diseases, epilepsy, autoimmune diseases, etc. Subjects with mental disorders that interfere with the implementation of intervention measures in this trial. Hypersensitivity to cycloplegic agents. Other circumstances deemed inappropriate for participation in the trial by the investigator for safety reasons or the patient's benefit.

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Conditions

The condition(s) this trial relates to.

degenerative myopia myopia

As listed by the trial registrant

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

Myopia

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

  • Beijing Tongren Hospital

    Beijing, China

More trials for these conditions

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