Myopia
Conditions
Interventions
control group:Non-prescription defocus lenses
Clinical study group 1:Microlens +3.50D peripheral defocus lens
Clinical study group 2:Annular defocus +3.50D peripheral defocus lens
Clinical study group 3:Annular defocus +1.50D peripheral defocus lens
Sponsors
Air Force Medical Center
Eligibility
Sex/Gender
All
Age
6 Years to 15 Years
Inclusion criteria
Inclusion criteria: 1. Aged between 6 and 15 years old; 2. Equivalent spherical refractive error: -0.25 to +0.75 D; 3. Astigmatism and anisometropia below 1.50 D; 4. Uncorrected visual acuity of each eye is not less than 0.8, and the best-corrected visual acuity of each eye is not less than 1.0. 5. Voluntarily participate in this project and sign the informed consent.
Exclusion criteria
Exclusion criteria: 1.Strabismus and binocular vision abnormalities; 2.Previous use of medications or lenses to control myopia. 3.Allergy to cycloplegia; 4.Eye diseases: macular diseases, moderate to severe dry eye, corneal diseases, cataracts, vitreoretinal diseases, infectious conjunctivitis, uveitis, optic nerve damage, congenital optic nerve developmental abnormalities, or other ocular diseases; 5. Autoimmune diseases (including lupus erythematosus, dermatomyositis, Sjögren's syndrome, etc.); 6. Systemic diseases (such as hypertension, lupus erythematosus, albinism, etc.); 7. Children and adolescents with other diseases (such as a history of seizures, tic disorders, incomplete central nervous system development, epilepsy, mental and psychological disorders, etc.).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Axial;Refraction; | — |
Secondary
| Measure | Time frame |
|---|---|
| Accommodation and convergence function; | — |
Countries
China
Contacts
Public ContactLinsong Qi
Air Force Medical Center
Outcome results
None listed