To evaluate the differences in controlling the progression of myopia in adolescents and the safety and comfort of wearing different types of defocus incorporated multiple segments spectacle lenses, to explore the feasibility of effective defocus micro lens design, and apply personalized defocus frame lenses for myopia prevention and control.

Inclusion Criteria:

1. Age: 6-14 years old;
2. After using 1% cyclohexanone hydrochloride eye drops (Saifeijie) for ciliary muscle paralysis, binocular spherical power were within 0.00D~-4.00D, binocular cylinder power ≤ 1.50D, the anisometropia is less than 1.50D, and the best corrected visual acuity was above 5.0;
3. Within 30 days, the myopia prevention and control methods such as multifocal glasses, orthokeratology, defocusing flexible glasses, progressive glasses, atropine eye drops, red light and acupuncture and moxibustion treatment were not used;
4. The subject has a willingness to receive treatment and an informed consent form is signed by their legal guardian.

Exclusion Criteria:

1. Diagnosed constant strabismus;
2. Diagnosed pathological myopia;
3. Other congenital eye diseases;
4. Researchers believe that the patients have other reasons that are not suitable for inclusion in the project.