Myopia
Conditions
Interventions
1:Use 0.05% atropine eyedrop daily and low-level red light therapy for 3 minutes twice per school day at home with an interval of at least 4 hours
2:Use 0.025% atropine eyedrop daily and low-level red light therapy for 3 minutes twice per school day at home with an interval of at least 4 hours
3:Use 0.01% atropine eyedrop daily and low-level red light therapy for 3 minutes twice per school day at home with an interval of at least 4 hours
4:Receive the placebo eyedrop once daily and sham red light device for 3 minutes twice per school day at home with an interval of at least 4 hours
Sponsors
Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong
Eligibility
Sex/Gender
All
Age
4 Years to 12 Years
Inclusion criteria
Inclusion criteria: - Age 4 to 12 - Myopia: SE equal or less than -1.0 D - Astigmatism: < 2.5 D - Anisometropia: < 2.0 D - Informed parental consent
Exclusion criteria
Exclusion criteria: - Ophthalmic diseases other than refractive errors - Previous use of treatment of atropine, RLRL, or other optical myopia control methods (e.g. defocusing lenses or contact lenses, orthokeratology) - Allergy or intolerance to atropine or RLRL - Inability to attend regular follow up assessment
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Changes in SER;Changes in axial length; | — |
Secondary
| Measure | Time frame |
|---|---|
| Changes in pupil size, accommodation, and visual acuity; | — |
Countries
China
Contacts
Public ContactDr YAM Cheuk Sing Jason
Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong
Outcome results
None listed