The Effectiveness and Safety of Low-intensity Single-wavelength Red Light in Controlling High Myopia in Children and Adolescents：A Randomized, Controlled, Multicenter Clinical Trial

Inclusion Criteria: 1. age 3 to 16 years (inclusive), male or female 2. clinical diagnosis confirming that myopia has occurred in at least one eye. 3. the guardian voluntarily signed the "Subject's Informed Consent Form" Exclusion Criteria: * history of photosensitivity, glaucoma, glaucoma syndrome, high intraocular pressure, macular lesion or injury in the fundus ② corneal curvature examination, the average K value of the anterior surface of the cornea ≥ 45; ③ combined with heart, liver, kidney and other systemic diseases and prior. * Combination of cardiac, hepatic, renal, and other systemic diseases and congenital myopia; ④ Combination of ocular trauma and congenital myopia. ④ Combined with ocular trauma and chronic ocular diseases such as apparently oblique or operated eyes, atopic keratoconjunctivitis, etc.; ⑤ Previous presence of entropion. ⑤ Those with previous entropion and other eye diseases such as severe corneal and conjunctival infections; ⑥ Those with combined neurological diseases and other eye diseases. (6) Those with combined neurological disorders and allergies or contraindications to atropine drugs or other therapeutic drugs; (7) Albinism and psoriasis. (7) Patients with albinism, psoriasis, nephrotic syndrome, systemic lupus erythematosus, diabetes mellitus, and other immune system and systemic diseases; (8) Epilepsy, psychiatric disorders. ⑧ epilepsy, mental disorders who cannot communicate normally. * Previously treated with other treatments to control the development of myopia such as anticholinergic drugs such as atropine within 3 months, or involved in other functional * Previously treated with other treatments to control the development of myopia, such as anticholinergic drugs like atropine within 3 months, or involved in other studies related to functional frame lenses, multifocal soft lenses, etc. Other conditions judged by the investigator to be unsuitable for participation in the study