Myopia
Conditions
Interventions
single vision spectacle lenses:single vision spectacle lenses
peripheral defocus spectacle lenses:peripheral defocus spectacle lenses
Sponsors
The affiliated people's hospital of Ningbo University
Eligibility
Sex/Gender
All
Age
7 Years to 15 Years
Inclusion criteria
Inclusion criteria: 1.Obtained written informed consent signed by the parents (legal representative); 2.Age 7-15 years old; 3.Have a follow-up visit record of at least one year in our ophthalmology clinic, and have records of subjective refraction and axial length; 4.The subjective refraction one year ago met the following requirements: spherical refraction = -0.50 D for both eyes; 5.Wearing single vision spectacles lenses or peripheral defocus spectacle lenses and has remained unchanged for one year;
Exclusion criteria
Exclusion criteria: 1.Individuals with a history of eye diseases that may affect vision or refractive errors, such as cataracts, glaucoma, macular degeneration, corneal lesions, uveitis, retinal detachment, severe vitreous opacity, etc; 2.Systemic diseases: Individuals with a history of immune system disorders, central nervous system disorders, Down syndrome, asthma, severe cardiopulmonary function, and severe liver and kidney dysfunction; 3.Suffering from strabismus or any other pathological changes in the eyeball; 4.History of eye surgery; 5.The distance best corrected visual acuity > logMAR 0.1; 6.Other situations that researchers consider unsuitable;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| one-year change in axial length; | — |
Secondary
| Measure | Time frame |
|---|---|
| anxiety score;parental rearing style score; | — |
Countries
China
Contacts
Public ContactQihu Tong
The affiliated people's hospital of Ningbo University
Outcome results
None listed