The Monitoring and Intervention of Refractive Changes in Children and Teenagers in Tianjin
- Conditions
- MyopiaHigh Myopia
- Registration Number
- NCT05691296
- Lead Sponsor
- Tianjin Eye Hospital
- Brief Summary
The study aimed to collect multi-factor information on school-age children with pre-clinical myopia, and to identify the initial factors and warning signs of myopia.
- Detailed Description
The incidence of myopia is high in China. At present, the mechanism of myopia is unclear, and the main theories are genetic and environmental aspects. Many factors may affect the occurrence and development of myopia in students, such as ocular biological parameters, peripheral refractive state, differences in binocular vision function, eye habits, and outdoor time. In this study, the multi-factor information on pre-clinical myopia in school-age children was collected to find out the initial factors and warning signals of myopia.
Recruitment & Eligibility
- Status
- ACTIVE_NOT_RECRUITING
- Sex
- All
- Target Recruitment
- 4000
- All students in grades 1 to 4
- Can cooperate with the examination of students
- Obvious strabismus and amblyopia
- Eye diseases that affect vision, such as congenital cataracts, glaucoma, and retinal diseases
- History of ocular surgery
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Primary Outcome Measures
Name Time Method The rate of new-onset myopia Through study completion, an average of 1 year The number of new children with myopia was counted
The changes of refractive error Every 6 months, up to 3 years The changes of refractive error between visit time and baseline which was obtained with a computer refractometer.
The changes of axial length Every 6 months, up to 3 years The axial length was measured by a biological measuring instrument.
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Tiajin Eye Hospital
🇨🇳Tianjin, Tianjin, China
Tiajin Eye Hospital🇨🇳Tianjin, Tianjin, China