Myopia
Conditions
Interventions
Test group:Illuminate both eyes with low intensity red light (power 2 ± 0.5 mW
Maintain treatment for 12 months, then discontinue for 3 months
Control group:Behavioral intervention, myopia prevention education, observation for 15 months
Sponsors
Shanghai General Hospital
Eligibility
Sex/Gender
All
Age
6 Years to 12 Years
Inclusion criteria
Inclusion criteria: 1. Inclusion age: 6-12 years old; 2. After systematic ophthalmic examination, the patient is in the preclinical stage of myopia: after cycloplegia, the equivalent spherical mirror of both eyes should be checked -0.50 D < SE =+0.50 D, and astigmatism should be less than 1.00 D; 3. The best corrected visual acuity for one eye is 1.0 or above; 4. Parents agree to be randomly divided and sign an informed consent form.
Exclusion criteria
Exclusion criteria: Subjects who meet any of the following criteria are not eligible for admission to this study. 1. Children who have used low concentration atropine eye drops (0.01% -0.5%) or high concentration atropine eye drops (1%) or corneal shaping lenses or multifocal/bifocal frame lenses for myopia control within the past three months; 2. Children with anisometropia (with a difference in diopter between two eyes greater than 1.50D in the spherical mirror), strabismus, and amblyopia; 3. Secondary myopia (such as those who have suffered from retinopathy in premature infants or other eye diseases during infancy and young children), or myopia combined with systemic syndrome (such as those with Marfan syndrome); 4. Individuals with a history of photosensitivity, autoimmune diseases, and other major systemic diseases; 5. Those with refractive medium opacity (such as corneal lesions, lens opacity, etc.); 6. Individuals with retinal, optic nerve, macular degeneration, or other congenital or hereditary inner eye diseases; 7. People with moderate to severe dry eye, corneal disease, cataract, vitreoretinal disease, infectious conjunctivitis, uveitis, optic nerve damage, congenital optic nerve dysplasia or other eye diseases; 8. Individuals with intellectual disabilities, hyperactivity, etc. who cannot cooperate with treatment and follow-up; 9. Other reasons that the researcher believes are not suitable for inclusion in the project.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Axial Length; | — |
Secondary
| Measure | Time frame |
|---|---|
| spherical equivalent; | — |
Countries
China
Contacts
Public ContactZhang Zhihua
Shanghai General Hospital
Outcome results
None listed