childhood eye disease, myopia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Grade 1 students in urban primary school of Lhasa; 2. Those who have lived in Lhasa for more than half a year and will live there for a long time; 3. Voluntary participation in this study.
Exclusion criteria
Exclusion criteria: 1. Suffering from mental illness and unable to cooperate with the completion of baseline data survey and follow-up; 2. Live in Lhasa for less than half a year, with floating population; 3. The informed consent cannot be signed for any reason.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| questionnaire;distant visual accuity;near visual accuity;ocular biometry;cycloplegic autorefraction;accommodative response; | — |
Secondary
| Measure | Time frame |
|---|---|
| OCT test;retinal photography;identification of amblyopia and strabismus;height;weight; | — |
Countries
China
Contacts
Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology & Visual Sciences Key Laboratory