Skip to main content
OpenTrials
Not Yet Recruiting

NCT Number: NCT07211893

Effect of MyopiaEd Messaging on Improving Eye-use Behavior and Myopia Control Among Primary School Students in China

Myopia represents a significant global public health challenge, with China experiencing particularly high myopia prevalence among children and adolescents. The World Health Organization (WHO) acknowledges the critical role of health education in eye care and has collaborated with the International Telecommunication Union (ITU) to launch the Be He@lthy, Be Mobile (BHBM) initiative, which includes MyopiaEd-a mobile health project specifically designed to address myopia. Developed in partnership with international experts and informed by evidence-based guidelines, MyopiaEd provides standardized, scientifically validated content for effective myopia control. The MyopiaEd library has been translated and adapted by the Zhongshan Ophthalmic Center for use in China. Therefore, we aim to investigate whether the Chinese version of MyopiaEd can improve eye care behaviors among primary school students and enhance parental knowledge regarding myopia prevention and control in China.

Not Yet Recruiting

Trial opening soon.

Get Notified

Key information

Conditions

Myopia Eye Diseases Refractive Errors

Age range

8 year–12 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • primary school students in the third grade;
  • the guardians of students can receive, read, and understand multimedia (image-text) messages via WeChat on their mobile phones;
  • voluntary participation in this study, with guardians' consent and a signed informed consent form.

Exclusion criteria

  • with other ocular diseases that severely affect vision
  • with systematic diseases or mental disorders, inability to understand or cooperate with the study

Treatment and study plan

Send myopia-related health education message

Other

Guardians of students in the intervention group will receive regular myopia-related health education messages, comprising text and images, from the MyopiaEd information repository via class-based WeChat groups. The intervention will last for 12 months.

Primary outcomes

  1. The proportion of children having improved eye-use behaviors after 1 year.

    Time frame: 12 months

    Children are considered to have improved behaviors if they meet three or more of the following criteria after 12 months:

    Outdoor Time: Increase of ≥ 30 minutes for those initially < 2 hours; maintain ≥ 2 hours for those initially ≥ 2 hours.

    Near Work Time: Reduce ≥ 30 minutes for those initially ≥ 1 hour; maintain < 1 hour for those initially < 1 hour.

    Screen Time: Reduce ≥ 30 minutes for those initially ≥ 1 hour; maintain < 1 hour for those initially < 1 hour.

    Eye Exam Frequency: Increase of ≥ 1 exam for those with < 2 exams initially; maintain ≥ 2 for those with ≥ 2 exams.

    Sitting Posture: Increase of ≥ 1 point for those with ≤ 3; maintain ≥ 4 for those with ≥ 4.

    Resting Behavior During Near Work: Increase of ≥ 1 point for those with ≤ 3; maintain ≥ 4 for those with ≥ 4.

    Spectacle-Wearing: Children not wearing glasses begin after 12 months. Daily Spectacle Wear for Myopic Children: Increase of ≥ 1 hour for those wearing ≤ 8 hours; maintain > 8 hours for those wearing > 8 hour.

Secondary outcomes

  1. Change in myopia-related knowledge score of students' guardians between baseline and 12 months

    Time frame: 12 months

    Change in myopia-related knowledge score of students' guardians between baseline and 12 months, assessed via questionnaire. The score ranged from 1 to 20, with higher scores indicating better knowledge.

  2. Difference in incidence of myopia between the two groups after 12 months

    Time frame: 12 months

    Difference in incidence of myopia between the two groups after 12 months

  3. Difference in the change of spherical equivalence between baseline and 12 months in the two groups

    Time frame: 12 months

    Difference in the change of spherical equivalence between baseline and 12 months in the two groups. Spherical equivalence is calculated as sphere plus half of cylindrical power, as assessed by auto-refraction.

  4. The satisfaction of the MyopiaEd information by the guardians

    Time frame: 12 months

    The satisfaction of the MyopiaEd information by the guardians, assessed by a study questionnaire. Satisfaction score ranges from 1 to 5, with higher scores indicating better satisfaction.

Study contacts

Contact information is provided by the study sponsor or research team.

Lingyi Liang

CONTACT

[email protected]

+8602087330487

Sponsors and collaborators

Lead sponsor

Zhongshan Ophthalmic Center, Sun Yat-sen University

Other

Collaborators

  • National Health Commission of the People's Republic of China

Registry information

Official study title

Effect of MyopiaEd Messaging on Improving Eye-use Behavior and Myopia Control Among Primary School Students in China: A Randomized Controlled Trial

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Oct 8, 2025
Registry last updated
Dec 10, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.