Safety and Efficacy of Defocus Distributed Multi-point Lens in Myopia Control

Inclusion Criteria: * Aged 6-13,with written consent of his/her guardian,regardless of gender; * Objective cycloplegic spherical equivalent refractive between -1.00D and 5.00D,and best corrected vision acuity of right and left eyes are better than or equal to 1.0; * Astigmatism less than or equal to -1.50D; * Voluntarily participate in the clinical trial and sign the informed consent. Exclusion Criteria: * Those with a history of ocular trauma or intraocular surgery; * Clinical significant slit-lamp findings; * Abnormal IOP(\<10 mmHg , \>21 mmHg or difference between two eyes \>5mmHg); * Patient with other eye diseases,such as uveitis and other inflammation,glaucoma,cataract,fundus disease,eye tumors,eye trauma,strabismus and any lesions that affect vision function; * Patient with systemic diseases causing immunosuppression,such as acute or chronic sinusitis,diabetes,Down syndrome,rheumatoid arthritis,psychosis and other conditions that the investigator considers inappropriate for wearing glasses; * Those who have participated in other drug clinical trials within 3 months; * Only one eye meets the inclusion criteria; * Those who cannot have regular eye examinations; * Those who have been involved in any myopia control clinical trials,previously used or are using RGP,contact lens and glasses or atropine drugs to control myopia in the past year; * The candidates determined by the investigator are not eligible.