A Randomized Clinical Trial on the Effectiveness of Novel Plano Spectacle Lenses on Myopia Prevention in Pre-myopic Children

Inclusion Criteria: * At the time of signing the informed consent form, the subject's age must be ≥6 years and \<10 years (6-9.99 years); * Both eyes are not myopic (SE\>-0.50D under cycloplegia) and at least one eye meets the pre-myopia condition ( -0.50D\< SE under cycloplegia ≤+0.75D); \[spherical equivalent (SE)=Sph+Cyl/2\] * Astigmatism ≤1.00D in each eye; * Difference in SER (Anisometropia) between the two eyes should not exceed ≤1.50D; * Unaided distance and near visual acuity of at least 0.1 logMAR in each eye ; * Be in good general health; * Be able to actively cooperate with the intervention plan and ophthalmological examination; * Normal binocular vision * At least one parent with SER ≤-3.00 D Exclusion Criteria: * Incapable of expressing consent * All categories of persons particularly protected by law * Subject in another study which might have an influence on vision or interfere with study assessment. * Previous use of other prevention solutions, such as but not limited to red light therapy within 6 months, Atropine and other interventions were used within 3 months; * History or presence of an ocular disease, systemic disease, strabismus or amblyopia or other binocular vision abnormalities, accommodation dysfunction, cataract and eye surgery; * Those who are allergic cycloplegic drugs; * Other reasons that the investigator considers inappropriate for inclusion in the study.