Red light therapy shows promise for Kids' eyesight
NCT ID NCT07104513
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
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About 3,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2020
- Expected to finish
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Jul 2030
An estimate. End dates often move.
- 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.
Who is studied
5-16 years old, 500
- Ages
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5 to 16 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. 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
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Tianjin Medical University Eye Hospital
Tianjin, Tianjin Municipality, 120120, China
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Tianjin Medical University Eye Hospital
Tianjin, China
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