Myopia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age: 7-9 years old; 2. Equivalent spherical magnesiness> = 0.50D; 3. Anisometric <=1.50D; 4. Astigmatism<=1.50D; 5. Have not participated in other myopia prevention and control studies within 3 months, and have not taken other myopia prevention and control measures, including low-concentration atropine eye drops, defocus glasses, long-film shaping lenses, multifocal soft lenses, etc.; 6. Best corrected visual acuity (BCVA) of no less than 1.0 (0.0 logMAR) in both eyes using a standard logarithmic chart; 7. Be able to wear glasses when working in close proximity, and wear them for at least 3 hours a day.
Exclusion criteria
Exclusion criteria: 1. Patients with strabismus; 2. Patients with stereoscopic abnormalities; 3. Combined with other eye diseases, including developmental abnormalities affecting visual function and refractive status; 4. Previous history of ocular surgery; 5. Previous myopia control treatment, including orthokeratology, multifocal design soft or framed lenses, drug therapy (atropine), visual training, etc.; 6. Those who are using drugs that may affect pupil size and ocular surface function; 7. Combined with other systemic diseases that may affect visual function or refractive status; 8. Have a family history of hereditary eye disease; 9. Other conditions that the investigator considers unsuitable for participation in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Axial length;Cycloplegic refraction;Vision;Intraocular pressure;Wide-field retinal refraction ;Choroidal Blood Flow;Choroidal thickness; | — |
Countries
China
Contacts
Changsha Aier Eye Hospital, Aier Eye Hospital Group Co., Ltd.