Photobiomodulation therapy, that is, Low-level red-light technology provides a new and innovative myopia control approach. This strategy enables relatively high energies of light to be delivered at much shorter durations of exposure to induce the myopia control effect. The efficacy of the low-level red-light technology has been proven in a Chinese populationb for the recent 3 years with evidence based papers and amazing results. However, there's not yet evidence to demonstrate the relationship between the dose response effect of photobiomodulation therapy on myopia control at the different age lever.
Previous trial has demonstrated that 3-minutes per session twice a day repeated low-level red-light treatment at the irridiance of 2.3mW（2.0\~2.5mW) controlled 87.7% of refraction progression and 76.8% of axial length elongation when the time of compliance to the treatment was 75%. Retrospective analyze other irriadance of 1.2mW, 0.6mW and 0.37mW culturally diverse groups will confirm and translate this technology into a solution for myopia control globally.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
300
This light is Narrow-Band, Long-Wavelength Lighting with three different illumination (400lux, 800lux, 1200lux) or irridiance (1.2mW, 0.6mW, 0.37mW) respectively. And the wavelength is 650nm. It allows biocular therapy.
Qiu Jenny
Beijing, Haidian District, China
Axial length shortening comparing to that value of baseline (mm）
Measured with optial coherent methods with the same device assistant with the same techinician
Time frame: 12-month
Axial length shortening comparing to that value of baseline (mm）
Measured with optial coherent methods with the same device assistant with the techinician
Time frame: 1-month
Axial length shortening comparing to that value of baseline (mm）
Measured with optial coherent methods with the same device assistant with the same techinician
Time frame: 6-month
Refractive changes at the follow-up from the baseline (D)
Spherical Equivalence were recorded with the right eyes only
Time frame: 12-month
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