Multicenter RCT: LED Red Light Dose-Response in Myopia Progression Control
NCT ID: NCT07330180
Last Updated: 2026-01-09
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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NOT_YET_RECRUITING
NA
364 participants
INTERVENTIONAL
2026-01-01
2027-04-30
Brief Summary
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\[primary hypothesis or outcome measure 1\]: Does the combination of Yingtong Vision Rehabilitation Instrument (non-laser LED red light) and Hoya DIMS defocus lens show non-inferior effectiveness to Hoya DIMS defocus lens alone in controlling 6-month axial length change? \[primary hypothesis or outcome measure 2\]: Do different single intervention durations (2min, 3min, 4min) of non-laser LED red light affect the effectiveness (e.g., axial length change at multiple time points, 12-month SER change) and safety of the combined therapy? If there is a comparison group: Researchers will compare Test Group A (2min PBM therapy + DIMS lenses), Test Group B (3min PBM therapy + DIMS lenses), Test Group C (4min PBM therapy + DIMS lenses), and Control Group D (DIMS lenses alone)\] to see if the combined therapy has similar or better myopia control effects and comparable safety, and to identify the optimal intervention duration.
Participants will:
Complete screening examinations (axial length, refractive error, visual acuity, IOP, fundus photography, OCT, etc.) and sign the informed consent form.
Be randomly assigned to one of the four groups and receive the corresponding intervention (use the Yingtong Vision Rehabilitation Instrument as per group-specific duration twice a day, with ≥4-hour interval, plus DIMS lenses; or only DIMS lenses).
Attend regular follow-up visits at 30 days, 3 months, 6 months, 9 months, and 12 months for efficacy and safety assessments (including repeated ocular examinations and adverse event reporting).
Cooperate with the entire 12-month trial process and comply with the device usage specifications and follow-up requirements.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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Test Group A
PBM therapy with single intervention duration of 2 minutes + wearing Hoya DIMS defocus lens
Yingtong Vision Rehabilitation Instrument
Input voltage: 6V (4 × 1.5V alkaline dry batteries). Red light wavelength: 650nm; light spot diameter: outer diameter 5.0mm, inner diameter 1.5mm.
Light source output power: 1.6 mW (±0.1mW at 30mm from the observation window). The Yingtong Vision Rehabilitation Instrument should be used twice a day under the regular communication and supervision of hospital optometrists/coordinators (via phone, WeChat, etc.), with an interval of at least 4 hours.
Hoya DIMS multi-point myopia defocus lens
Frame glasses worn on the bridge of the nose
Test Group B
PBM therapy with single intervention duration of 3 minutes + wearing Hoya DIMS defocus lens
Yingtong Vision Rehabilitation Instrument
Input voltage: 6V (4 × 1.5V alkaline dry batteries). Red light wavelength: 650nm; light spot diameter: outer diameter 5.0mm, inner diameter 1.5mm.
Light source output power: 1.6 mW (±0.1mW at 30mm from the observation window). The Yingtong Vision Rehabilitation Instrument should be used twice a day under the regular communication and supervision of hospital optometrists/coordinators (via phone, WeChat, etc.), with an interval of at least 4 hours.
Hoya DIMS multi-point myopia defocus lens
Frame glasses worn on the bridge of the nose
Test Group C
PBM therapy with single intervention duration of 4 minutes + wearing Hoya DIMS defocus lens
Yingtong Vision Rehabilitation Instrument
Input voltage: 6V (4 × 1.5V alkaline dry batteries). Red light wavelength: 650nm; light spot diameter: outer diameter 5.0mm, inner diameter 1.5mm.
Light source output power: 1.6 mW (±0.1mW at 30mm from the observation window). The Yingtong Vision Rehabilitation Instrument should be used twice a day under the regular communication and supervision of hospital optometrists/coordinators (via phone, WeChat, etc.), with an interval of at least 4 hours.
Hoya DIMS multi-point myopia defocus lens
Frame glasses worn on the bridge of the nose
Control Group D
Wearing Hoya DIMS defocus lens only
Hoya DIMS multi-point myopia defocus lens
Frame glasses worn on the bridge of the nose
Interventions
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Yingtong Vision Rehabilitation Instrument
Input voltage: 6V (4 × 1.5V alkaline dry batteries). Red light wavelength: 650nm; light spot diameter: outer diameter 5.0mm, inner diameter 1.5mm.
Light source output power: 1.6 mW (±0.1mW at 30mm from the observation window). The Yingtong Vision Rehabilitation Instrument should be used twice a day under the regular communication and supervision of hospital optometrists/coordinators (via phone, WeChat, etc.), with an interval of at least 4 hours.
Hoya DIMS multi-point myopia defocus lens
Frame glasses worn on the bridge of the nose
Eligibility Criteria
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Inclusion Criteria
* After cycloplegic autorefraction, monocular or binocular spherical equivalent refraction (SER) meets: -6.00D ≤ SER ≤ -1.00D, and binocular best-corrected visual acuity (BCVA) ≥ 0.8 (logMAR 0.1; Snellen 20/25);
* Binocular anisometropia ≤ 1.50D; astigmatism ≤ 2.50D;
* Able to understand the purpose of the study, willing to participate in this clinical verification, sign the informed consent form personally or through their legal guardian, and cooperate with the entire trial process (12 months).
Exclusion Criteria
* Received any of the following myopia control measures within one month (including but not limited to): low-concentration atropine eye drops, orthokeratology lenses, myopia control-related frame glasses, low-level red light therapy, defocus soft contact lenses, or defocus RGP lenses;
* Subjects with ocular diseases that may affect visual acuity or refractive error (e.g., lens disorders such as cataracts, glaucoma, macular degeneration, corneal diseases, uveitis, retinal detachment, severe vitreous opacity, etc.);
* Neurological diseases (previous convulsion history, epilepsy, tic disorders, central nervous system developmental abnormalities) or mental and psychological diseases;
* Systemic diseases: immune system diseases, central nervous system diseases, Down syndrome, asthma, severe cardiopulmonary function impairment, severe liver and kidney dysfunction, acute or chronic sinusitis, or diabetes mellitus;
* Binocular manifest strabismus or any other pathological changes of the eyeball or acute inflammatory ocular diseases;
* Subjects deemed inappropriate by the investigator.
6 Years
14 Years
ALL
Yes
Sponsors
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Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine
OTHER
Responsible Party
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Xiaojuan Wang
Director of the Optometry Center
Locations
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The First Affiliated Hospital of Chongqing Medical University
Chongqing, Chongqing Municipality, China
The Second People's Hospital of Foshan City
Foshan, Guangdong, China
The First Affiliated Hospital of Zhengzhou University
Zhengzhou, Henan, China
Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology
Wuhan, Hubei, China
The Fourth People's Hospital of Shenyang City
Shenyang, Liaoning, China
The First Affiliated Hospital of Guangxi Medical University
Guilin, Nanning, China
The First Affiliated Hospital of Xi'an Jiaotong University
Xi’an, Shanxi, China
Countries
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Central Contacts
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References
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He M, Zeng J, Liu Y, Xu J, Pokharel GP, Ellwein LB. Refractive error and visual impairment in urban children in southern china. Invest Ophthalmol Vis Sci. 2004 Mar;45(3):793-9. doi: 10.1167/iovs.03-1051.
Zhao J, Pan X, Sui R, Munoz SR, Sperduto RD, Ellwein LB. Refractive Error Study in Children: results from Shunyi District, China. Am J Ophthalmol. 2000 Apr;129(4):427-35. doi: 10.1016/s0002-9394(99)00452-3.
Maul E, Barroso S, Munoz SR, Sperduto RD, Ellwein LB. Refractive Error Study in Children: results from La Florida, Chile. Am J Ophthalmol. 2000 Apr;129(4):445-54. doi: 10.1016/s0002-9394(99)00454-7.
Pokharel GP, Negrel AD, Munoz SR, Ellwein LB. Refractive Error Study in Children: results from Mechi Zone, Nepal. Am J Ophthalmol. 2000 Apr;129(4):436-44. doi: 10.1016/s0002-9394(99)00453-5.
Mutti DO, Hayes JR, Mitchell GL, Jones LA, Moeschberger ML, Cotter SA, Kleinstein RN, Manny RE, Twelker JD, Zadnik K; CLEERE Study Group. Refractive error, axial length, and relative peripheral refractive error before and after the onset of myopia. Invest Ophthalmol Vis Sci. 2007 Jun;48(6):2510-9. doi: 10.1167/iovs.06-0562.
Zadnik K, Sinnott LT, Cotter SA, Jones-Jordan LA, Kleinstein RN, Manny RE, Twelker JD, Mutti DO; Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study Group. Prediction of Juvenile-Onset Myopia. JAMA Ophthalmol. 2015 Jun;133(6):683-9. doi: 10.1001/jamaophthalmol.2015.0471.
Zhang M, Gazzard G, Fu Z, Li L, Chen B, Saw SM, Congdon N. Validating the accuracy of a model to predict the onset of myopia in children. Invest Ophthalmol Vis Sci. 2011 Jul 29;52(8):5836-41. doi: 10.1167/iovs.10-5592.
Jones-Jordan LA, Sinnott LT, Manny RE, Cotter SA, Kleinstein RN, Mutti DO, Twelker JD, Zadnik K; Collaborative Longitudinal Evaluation of Ethnicity and Refractive Error (CLEERE) Study Group. Early childhood refractive error and parental history of myopia as predictors of myopia. Invest Ophthalmol Vis Sci. 2010 Jan;51(1):115-21. doi: 10.1167/iovs.08-3210. Epub 2009 Sep 8.
Tedja MS, Wojciechowski R, Hysi PG, Eriksson N, Furlotte NA, Verhoeven VJM, Iglesias AI, Meester-Smoor MA, Tompson SW, Fan Q, Khawaja AP, Cheng CY, Hohn R, Yamashiro K, Wenocur A, Grazal C, Haller T, Metspalu A, Wedenoja J, Jonas JB, Wang YX, Xie J, Mitchell P, Foster PJ, Klein BEK, Klein R, Paterson AD, Hosseini SM, Shah RL, Williams C, Teo YY, Tham YC, Gupta P, Zhao W, Shi Y, Saw WY, Tai ES, Sim XL, Huffman JE, Polasek O, Hayward C, Bencic G, Rudan I, Wilson JF; CREAM Consortium; 23andMe Research Team; UK Biobank Eye and Vision Consortium; Joshi PK, Tsujikawa A, Matsuda F, Whisenhunt KN, Zeller T, van der Spek PJ, Haak R, Meijers-Heijboer H, van Leeuwen EM, Iyengar SK, Lass JH, Hofman A, Rivadeneira F, Uitterlinden AG, Vingerling JR, Lehtimaki T, Raitakari OT, Biino G, Concas MP, Schwantes-An TH, Igo RP Jr, Cuellar-Partida G, Martin NG, Craig JE, Gharahkhani P, Williams KM, Nag A, Rahi JS, Cumberland PM, Delcourt C, Bellenguez C, Ried JS, Bergen AA, Meitinger T, Gieger C, Wong TY, Hewitt AW, Mackey DA, Simpson CL, Pfeiffer N, Parssinen O, Baird PN, Vitart V, Amin N, van Duijn CM, Bailey-Wilson JE, Young TL, Saw SM, Stambolian D, MacGregor S, Guggenheim JA, Tung JY, Hammond CJ, Klaver CCW. Genome-wide association meta-analysis highlights light-induced signaling as a driver for refractive error. Nat Genet. 2018 Jun;50(6):834-848. doi: 10.1038/s41588-018-0127-7. Epub 2018 May 28.
Wang W, Jiang Y, Zhu Z, Zhang S, Xuan M, Chen Y, Xiong R, Bulloch G, Zeng J, Morgan IG, He M. Clinically Significant Axial Shortening in Myopic Children After Repeated Low-Level Red Light Therapy: A Retrospective Multicenter Analysis. Ophthalmol Ther. 2023 Apr;12(2):999-1011. doi: 10.1007/s40123-022-00644-2. Epub 2023 Jan 7.
Boyer D, Hu A, Warrow D, Xavier S, Gonzalez V, Lad E, Rosen RB, Do D, Schneiderman T, Ho A, Munk MR, Jaffe G, Tedford SE, Croissant CL, Walker M, Ruckert R, Tedford CE. LIGHTSITE III: 13-Month Efficacy and Safety Evaluation of Multiwavelength Photobiomodulation in Nonexudative (Dry) Age-Related Macular Degeneration Using the Lumithera Valeda Light Delivery System. Retina. 2024 Mar 1;44(3):487-497. doi: 10.1097/IAE.0000000000003980.
Ivandic BT, Ivandic T. Low-level laser therapy improves visual acuity in adolescent and adult patients with amblyopia. Photomed Laser Surg. 2012 Mar;30(3):167-71. doi: 10.1089/pho.2011.3089. Epub 2012 Jan 11.
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Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Document Type: Informed Consent Form
Other Identifiers
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20251009041118960
Identifier Type: -
Identifier Source: org_study_id
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