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NCT Number: NCT07412678

Evaluation of the Efficacy of Red Light in Adult Patients With High and Extreme Myopia

This study, led by Jie ying from the Ophthalmology Department of Beijing Tongren Hospital Affiliated to Capital Medical University, is a researcher-initiated clinical trial (IIT) designed to evaluate the therapeutic efficacy of low-intensity red light therapy in adult patients with high myopia (spherical equivalent ≤ -6.00D) and extreme myopia (spherical equivalent ≤ -10.00D). With the escalating global prevalence of high and extreme myopia-especially in East Asia including China-and pathological myopia becoming a leading cause of irreversible blindness in Chinese adults, red light therapy has shown promising effects in slowing myopia progression in children but lacks clinical evidence for adult populations, which constitutes the core rationale for this research.

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Key information

Age range

18 year–45 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

red light

Device

Subjects receive low-intensity single-wavelength red light therapy using the Tongren Myopia and Amblyopia Therapeutic Apparatus , administered twice daily for 3 minutes per session with an interval of at least 4 hours, combined with single-vision frame glasses.

Single vision spectacle lenses

Other

Myopia correction, optic way

Primary outcomes

  1. Axial length

    Time frame: Baseline, 3-month, 6-month, 9-month, 12-month

  2. Sphearical equivalent error

    Time frame: Baseline, 3-month, 6-month, 9-month, 12-month

Study contacts

Contact information is provided by the study sponsor or research team.

Sponsors and collaborators

Lead sponsor

Beijing Tongren Hospital

Other

Registry information

Important dates

Study start
2026
Primary completion
2027
Study completion
2027
First posted
Feb 17, 2026
Registry last updated
Feb 17, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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