The Rebound Effect on Repeated Low-Level Red Light Therapy for Myopia
The Rebound Effect on Repeated Low-Level Red Light Therapy for Myopia: A Randomized Controlled Clinical Trial
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Descrizione dettagliata
Myopia is a public health issue of global concern, with its incidence and severity increasing annually, particularly among children and adolescents. Projections indicate that by 2050, the global prevalence of myopia will reach as high as 49.8%, with the prevalence of high myopia reaching 9.8% .With the rising prevalence of myopia, the risk of myopia-related complications has increased significantly, including cataracts, glaucoma, myopic macular degeneration, and retinal detachment. Without proper management, these conditions can lead to severe visual impairment and substantial societal burdens. Therefore, preventing and slowing the onset and progression of myopia has become a critical strategy in myopia control efforts.
Repeated low-level red light (RLRL) therapy is an emerging treatment modality for myopia control. In a 12-month multicenter randomized clinical trial, the RLRL group demonstrated a 69.4% reduction in axial length elongation and a 76.6% decrease in myopic refractive progression compared to the single-vision spectacle (SVS) group. Furthermore, RLRL therapy showed superior efficacy in patients with high myopia, achieving an axial length reduction of over 0.05 mm in 53.3%-59% of cases.Comparative studies on the efficacy of atropine in controlling myopia demonstrated that, after 12 months of use, the RLRL therapy significantly outperformed 0.01% atropine in controlling axial length.In myopic patients who still exhibit poor control of axial length despite wearing orthokeratology lenses, combined use of RLRL therapy significantly inhibits axial growth.
Given that myopia typically progresses continuously during childhood, Xiong et al. investigated the long-term efficacy and safety of RLRL therapy over a period exceeding two years. The results demonstrated good tolerability of RLRL therapy, with an efficacy rate of 75% in terms of axial length reduction and myopic refractive control after two years of treatment; however, the therapeutic efficacy declined in the second year compared to the first year.Additionally, similar to other myopia intervention strategies, a rebound effect was observed in patients who discontinued RLRL treatment after one year; in these patients, their myopia progression rate during the second year was comparable to the progression level observed in the SVS group during its first year.
To further investigate the long-term efficacy of RLRL treatment and rebound effects after treatment discontinuation, as well as to explore strategies for mitigating these rebound effects, this study focused on participants who received continuous RLRL therapy for one year. It examined the rebound effects in axial length (AL) and spherical equivalent refractive power (SER) among participants who discontinued or gradually reduced RLRL treatment compared to those who continued treatment.
Tipo di studio
Tipo di studio
Iscrizione (Stimato)
Iscrizione
Fase
Fase
- Non applicabile
Contatti e Sedi
Contatto studio
Contatto studio
- Nome: Lixia Feng, Doctor
- Numero di telefono: +8613075590585
- Email: lixiafeng75@fy.ahmu.edu.cn
Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
- Bambino
Accetta volontari sani
Descrizione
Inclusion Criteria:
- 8 to 16 years old
- Rceived continuous RLRL treatment for 1 year (±1 month) without interruption.
- 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.
- The consent of the guardian and the consent of the participant.
Exclusion Criteria:
- History of any ophthalmic surgery or ocular diseases (e.g., glaucoma, retinal disorders).
- 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.).
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Separare
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
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Comparatore attivo: the continued RLRL treatment group(RLRL-C)
The pediatric participants had received continuous Repeated low-level red light(RLRL) treatment for one year and continue to receive RLRL treatment for one more year.
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Repeated low-level red light (RLRL) therapy is an emerging treatment modality for myopia control.
The participants were randomly assigned to three groups: the continued RLRL treatment group (RLRL-C), the discontinued RLRL treatment group (RLRL-I), and the gradually reduced RLRL treatment group (RLRL-T).
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Sperimentale: the discontinued RLRL treatment group (RLRL-I)
The pediatric participants had received continuous Repeated low-level red light(RLRL) treatment for one year and discontinue RLRL treatment for one year.
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Repeated low-level red light (RLRL) therapy is an emerging treatment modality for myopia control.
The participants were randomly assigned to three groups: the continued RLRL treatment group (RLRL-C), the discontinued RLRL treatment group (RLRL-I), and the gradually reduced RLRL treatment group (RLRL-T).
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Sperimentale: the gradually reduced RLRL treatment group (RLRL-T)
The pediatric participants had received continuous Repeated low-level red light(RLRL) treatment for one year and gradually reduce the RLRL treatment for one year(First month: twice daily, for 5 days per week;Second month: Once daily, for 5 days per week;Third month: once daily, for 3 days per week).
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Repeated low-level red light (RLRL) therapy is an emerging treatment modality for myopia control.
The participants were randomly assigned to three groups: the continued RLRL treatment group (RLRL-C), the discontinued RLRL treatment group (RLRL-I), and the gradually reduced RLRL treatment group (RLRL-T).
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Axial length(AL)
Lasso di tempo: Baseline, 6 months and12 months.
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Change from baseline in Axial length [Unit of Measure:mm]
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Baseline, 6 months and12 months.
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Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Change in Spherical Equivalent Refraction (SER)
Lasso di tempo: Baseline, 6 Months, 12 Months
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Mean change from baseline in spherical equivalent refraction [ Unit of Measure: Diopters (D) ]
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Baseline, 6 Months, 12 Months
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Best-Corrected Visual Acuity (BCVA)
Lasso di tempo: Baseline, 6 Months, 12 Months
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Change from baseline in best-corrected visual acuity measured using the ETDRS chart [Unit of Measure: LogMAR]
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Baseline, 6 Months, 12 Months
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corneal curvature
Lasso di tempo: Baseline, 6 Months, 12 Months
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Change from baseline in mean corneal curvature (K-readings) [Unit of Measure: Diopters]
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Baseline, 6 Months, 12 Months
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Anterior Chamber Depth (ACD)
Lasso di tempo: Baseline,6 months and 12 months.
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Change from baseline in anterior chamber depth (Unit of Measure:mm)
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Baseline,6 months and 12 months.
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Collaboratori e investigatori
Sponsor
Sponsor
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Studia le date principali
Inizio studio (Stimato)
Inizio studio
Completamento primario (Stimato)
Completamento primario
Completamento dello studio (Stimato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- KY2026-03-88
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