Prevalence and risk factors for myopia among urban and rural children in Northeast China: protocol for a school-based study

Status

Recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2300072893

Enrollment

Unknown

Registered

2023-06-27

Start date

2023-04-01

Completion date

Unknown

Last updated

2023-07-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Myopia

Interventions

case series:NA

Eligibility

Sex/Gender

All

Age

6 Years to 16 Years

Inclusion criteria

Inclusion criteria: In schools in pilot areas, children and adolescents aged 6-16 years, with the consent of the student's parents.

Exclusion criteria

Exclusion criteria: Exclude children and adolescents who are unable to cooperate with relevant examinations such as vision and optometry due to various reasons, have not signed informed consent forms, and have previous eye problems.

Design outcomes

Primary

Measure	Time frame
refractive error;visual acuity;	—

Secondary

Measure	Time frame
Anthropometric indicators;Spinal curvature abnormality ;Dental caries measurements;Questionnaires;	—

Countries

China

Contacts

Public ContactLiu Hua

Third Affiliated Hospital of Jinzhou Medical University

zhengtl@mail.ustc.edu.cn+86 135 0416 8833

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 7, 2026