Myopia
Conditions
Interventions
Group A:LED study lamps equipped with a 380–780 nm continuous spectrum and negative ion emission.
Group B:LED study lamps equipped with a 380–780 nm continuous spectrum (without negative ion emission).
Group C:Continuous spectrum LED study lamps equipped with negative ion emission (without specifically added violet spectrum).
Group D:Standard continuous spectrum LED study lamps (without specifically added violet spectrum or negative ion emission).
Sponsors
The First Affiliated Hospital of USTC (Anhui Provincial Hospital)
Eligibility
Sex/Gender
All
Age
6 Years to 12 Years
Inclusion criteria
Inclusion criteria: 1. Primary school students aged between 6 and 12. 2. No organic diseases, and the general condition is good. 3. The diopter is between -2.0D and +2.0D, and the astigmatism does not exceed ±0.75D. 4. Patients with no history of eye trauma, and excluding those with amblyopia, strabismus/phoria, color weakness, congenital cataracts, glaucoma, and other eye diseases. 5. Voluntarily participate in this study, obtain the guardian's consent and have the guardian sign the informed consent form, have long-term residence in this city, and be able to cooperate with the experimental protocol and eye examinations. 6. Other situations that researchers determine are not suitable for participation in the study.
Exclusion criteria
Exclusion criteria: 1.Refuse to participate in eye examinations such as pupil dilation. 2.Intraocular surgery or organic lesions of ocular tissues.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Axial length; | — |
Secondary
| Measure | Time frame |
|---|---|
| equivalent spherical degree;Intraocular pressure;Unaided visual acuity;Corneal curvature; | — |
Countries
China
Contacts
Public ContactHuayi Lyu
The First Affiliated Hospital of USTC (Anhui Provincial Hospital)
Outcome results
None listed