Myopia
Conditions
Interventions
Trial group:Low intensity single wavelength red light therapy instrument
Control group:Convenience matching glass
Sponsors
West China Hospital of Sichuan University
Eligibility
Sex/Gender
All
Age
7 Years to 12 Years
Inclusion criteria
Inclusion criteria: 1. Age: 7 - 12 years school aged children; 2. Refraction was assessed by short acting cycloplegic retinoscopy with diopters ranging from -3.00d <= spherical to -0.50d with a cylinder mirror to <= 2.50d in both eyes; 3. The child's guardian, who was able to understand the study protocol and willing to participate in this study, provided written informed consent.
Exclusion criteria
Exclusion criteria: 1. Those who had used low concentration atropine eye drops or spica casting for myopia control; 2. Those with a previous or current diagnosis of anisometropia (refractive difference spherical lens > 1.50D in both eyes), strabismus, and amblyopia; 3. Secondary myopia (because of congenital ocular lesions or because of comorbid systemic syndrome ocular lesions, such as congenital cataracts, congenital retinal disease, retinopathy of prematurity), or myopia with systemic syndrome (such as Marfan syndrome) ; 4. Those with refractive media opacification (keratopathy, lens opacity, etc.) 5. Those with fundus lesions, optic neuropathy, or other inner eye disease; 6. Those who had previous corneal surgery or inner eye surgery; 7. Other reasons considered unsuitable for inclusion in the project by the study physicians
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Axial length; | — |
Secondary
| Measure | Time frame |
|---|---|
| Diopter;Center corneal thickness;Anterior chamber depth;Corneal curvature; | — |
Countries
China
Contacts
Public ContactLiu Longqian
West China Hospital, Sichuan University
Outcome results
None listed