Ametropia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1.Children aged 1.8 to 14, gender not limited 2. Myopia degree: -0.50D to -4.00D; Astigmatism degree: < = -1.50D, anisometropia of both eyes < 1.00D. 3. The best corrected visual acuity (BCVA) of both eyes reached more than 0.05LogMAR 4. There was no significant strabismus in the close-range and long-distance coverage-de-cover-up tests as well as the alternating cover-up test No other eye diseases were found during the ophthalmic examination 6. Good general health condition, no history of abnormal growth and development or systemic diseases that may affect vision in the past 7. No previous use of local or systemic drugs that may affect the progression of myopia or vision through the optic nerve, retina, accommodation or intraocular pressure, such as low-concentration atropine eye drops, etc 8. There is no previous history of myopia treatment with contact lenses, bifocal glasses, progressive lenses, etc 9. The guardians signed the informed consent form, and the subjects voluntarily participated in this study
Exclusion criteria
Exclusion criteria: 1. Combined with organic ocular lesions 2. There are obvious binocular vision problems such as strabismus 3. There is a history of eye trauma in the past 4. Combined with other serious systemic diseases 5. Unable to complete ophthalmic examinations and follow-up visits 6. The physician deems there to be any other circumstances that make one unsuitable for inclusion
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Vision with glasses;Axial length of eye;SER for refraction through cycloplegia; | — |
Secondary
| Measure | Time frame |
|---|---|
| Visual function;Retinal vessel density;Choroidal thickness;Choroidal vascularity index; | — |
Countries
China
Contacts
Guangdong Provincial People's Hospital