Myopia
Conditions
Interventions
group 1:Wear ordinary glasses to read the text displayed on the tablet
Cross over to normal glasses and telescopic light screen after 3-7 days
Add vision training after 3-7 days
group 2:Wear ordinary glasses to read the text displayed on the long-range light screen
Cross over to regular glasses and tablets after 3-7 days
group 3:Wear out-of-focus glasses to read tablet display text
Cross over to out-of-focus glasses and telephoto screen after 3-7 days
group 4:Wear out-of-focus glasses to read the text displayed on the telephoto screen
Cross over to defocused glasses and tablets after 3-7 days
Sponsors
Tianjin Eye Hospital
Eligibility
Sex/Gender
All
Age
8 Years to 13 Years
Inclusion criteria
Inclusion criteria: 1. Aged 8-13 years; Corrected vision >=1.0; 2. The equivalent spherical lens degree ranges from -0.50D to -6.00D; 3. Dispersion <=1.50D; 4. Anisometropia <=1.50D; 5. Voluntarily participate in the clinical trial and sign the informed consent.
Exclusion criteria
Exclusion criteria: 1. The adjustment function is abnormal; 2. Ocular organic lesions; 3. Abnormal eye position and eye movement.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Diopter;Adjust microwave power;Accommodation error;Nearwork induced transient myopia;Anteroposterior axis; | — |
Secondary
| Measure | Time frame |
|---|---|
| Choroid thickness;Distance vision; | — |
Countries
China
Contacts
Public ContactChen Xiaoqin
Tianjin Eye Hospital
Outcome results
None listed