Trials / Unknown
UnknownNCT05637827
The Initiating Factors of Myopia Among Primary and Secondary School Students in Tianjin
- Status
- Unknown
- Phase
- —
- Study type
- Observational
- Enrollment
- 200 (estimated)
- Sponsor
- Tianjin Eye Hospital · Academic / Other
- Sex
- All
- Age
- 5 Years – 11 Years
- Healthy volunteers
- —
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.
Conditions
Interventions
| Type | Name | Description |
|---|---|---|
| OTHER | No intervention | There was no intervention in each group, and only the natural development was observed |
Timeline
- Start date
- 2021-11-01
- Primary completion
- 2024-12-31
- Completion
- 2024-12-31
- First posted
- 2022-12-05
- Last updated
- 2022-12-05
Locations
1 site across 1 country: China
Source: ClinicalTrials.gov record NCT05637827. Inclusion in this directory is not an endorsement.