High hyperopia
Conditions
Interventions
Control group:1.00 diopter spherical undercorrection
Treatment group:3.00 diopter spherical undercorrection
Sponsors
The Zhongshan Ophthalmic Center,Sun Yat-sen University
Eligibility
Sex/Gender
All
Age
4 Years to 8 Years
Inclusion criteria
Inclusion criteria: 1. Aged >=4 years and +5.00 D in both eyes after cycloplegic refraction; 3. Astigmatism <2.00 D and anisometropia <1.00 D in both eyes; 4. Voluntary participation in this clinical trial with signed informed consent;
Exclusion criteria
Exclusion criteria: 1. Manifest strabismus, nystagmus, or meeting amblyopia diagnostic criteria; 2. Family history of strabismus; 3. Organic eye diseases, history of ocular trauma, or ocular surgery; 4. Ocular comorbidities causing visual impairment; 5. History of convergence/accommodation therapy; 6. Premature birth with gestational age <32 weeks; 7. Developmental delay diagnosed by a pediatrician or through an Individualized Education Program (IEP); 8. Known neurological disorders (e.g., cerebral palsy, Down syndrome);
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Refractive error; | — |
Secondary
| Measure | Time frame |
|---|---|
| Visual acuity;Axial length;Near stereoacuity; | — |
Countries
China
Contacts
Public ContactXiao Yang
The Zhongshan Ophthalmic Center,Sun Yat-sen University
Outcome results
None listed