About this trial
This study is a randomized controlled trial based on outdoor activity interventions at specific time periods, involving preschool children aged 4 to 5 years. It compared the axial length and myopia incidence between the intervention group and the control group at the 6th and 12th months of the intervention to determine the effect of outdoor activities at specific time periods on the prevention of myopia in preschool children. Additionally, the study investigated the association between outdoor activities at specific time periods and axial length and myopia in preschool children.
Eligibility criteria
Qualifiers
Students and their families were informed and voluntarily participated in the study, with parents signing the informed consent form.
Able to cooperate with eye examinations and questionnaires.
Disqualifiers
Communication barriers, unable to cooperate.
Strabismus, amblyopia, or any other ocular or systemic diseases that may affect refractive development.
Children currently using orthokeratology lenses or rigid contact lenses.
Using other interventions (such as acupuncture, massage, medication, ear acupuncture, etc.) to control myopia, apart from school eye exercises.
Trial design
Treatments tested in this trial
- Increase outdoor activity time during specific time periods
Treatment groups
Locations
Sponsors and collaborators
Fangbiao Tao
Lead sponsor
Anhui Medical University
Sponsor institution