Short-sighted
Conditions
Interventions
A group :Grid multi zone defocusing spectacle lens
B group: Optical function spectacle lens
C group:Grid multi zone defocus plus optical function spectacle lens
D group:Single focus spectacle lens
Sponsors
The First People's Hospital of Aksu Prefecture
Eligibility
Sex/Gender
All
Age
8 Years to 14 Years
Inclusion criteria
Inclusion criteria: 1. Children and adolescents aged 8–14 years; 2. Spherical equivalent refractive error in both eyes under undilated conditions, as determined by subjective refraction, is between -0.75 D (inclusive) and -5.00 D (inclusive); 3. Astigmatism = 5.0; 5. Able to comply with scheduled follow-up visits and cooperate with all required examinations.
Exclusion criteria
Exclusion criteria: 1.Wearing defocusing lenses or using low concentration atropine eye drops within 3 months; 2.Wearing OK glasses or other myopia intervention methods (such as red light related treatment methods) within 6 months; 3.The best corrected visual acuity (VA) for any eye is less than 4.9; 4.Surgical history that affects eye development; 5.Individuals with overt strabismus; 6. Eye pressure>21mmHg; 7.Eye diseases (excluding refractive errors) and systemic diseases; 8. Researchers determine ineligible candidates
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change from baseline in cycloplegic subjective refraction spherical equivalent and axial length at 12 months ± 30 days.; | — |
Secondary
| Measure | Time frame |
|---|---|
| Changes in SER and axial length relative to baseline;Change in choroidal thickness relative to baseline; | — |
Countries
China
Contacts
Public ContactJin Wanqing
The First People's Hospital of Aksu Prefecture
Outcome results
None listed