Myopia; Refractive Error
Conditions
Brief summary
There was a prospective cohort observational study. Forty hyperopic children, 40 myopic children and 120 emmetropia children were randomly selected from grade 1 to grade 3, and were followed up every six months for 3 years. All patients received cycloplegic refraction examination, ocular biological test, binocular visual function test and a questionnaire related to daily eye habits. A multi-level and multi-dimensional data analysis model was constructed to explore the possible factors affecting the occurrence and development of myopia in children.
Interventions
OTHERNo intervention
There was no intervention in each group, and only the natural development was observed
Sponsors
Tianjin Eye Hospital
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
5 Years to 11 Years
Inclusion criteria
* students in grades 1-3 * Can cooperate with the examination of students
Exclusion criteria
* Obvious strabismus and amblyopia * Eye diseases that affect vision, such as congenital cataracts, glaucoma, and retinal diseases * History of ocular surgery
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The changes of refractive error | Every 6 months for a period 3 years | The changes of refractive error between visit time in every 6 months |
| The changes of axial length | Every 6 months for a period 3 years | The changes of axial length between visit time in every 6 months. |
Countries
China
Contacts
Primary Contactyan wang
Outcome results
None listed