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

NCT07211893 | Not Yet Recruiting

• 1 other identifier: 2025KYPJ113
• Study Type: interventional
• Target: 1,330
• Locations: 0 countries
• Sites: N/A

Brief Summary

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.

Conditions

Myopia

Outcome Measures

Primary Outcomes (1)

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

  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.

  12 months

Secondary Outcomes (4)

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

  12 months

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

  12 months

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

  12 months

• The satisfaction of the MyopiaEd information by the guardians

  12 months

Study Arms (2)

MyopiaEd Messaging

EXPERIMENTAL

send myopia-related health education message from the MyopiaEd information repository

Other: Send myopia-related health education message

Control

NO INTERVENTION

no myopia-related health education message from the MyopiaEd information repository

Interventions

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.

MyopiaEd Messaging

Eligibility Criteria

• Age: 8 Years - 12 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17)

You may qualify if:

• 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.

You may not qualify if:

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

Sponsors & Collaborators

• Zhongshan Ophthalmic Center, Sun Yat-sen University: lead
• National Health Commission of the People's Republic of China: collaborator

MeSH Terms

Conditions

Myopia

Condition Hierarchy (Ancestors)

Refractive Errors; Eye Diseases

Central Study Contacts

Lingyi Liang

CONTACT

+8602087330487; lianglingyi@gzzoc.com

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: September 18, 2025
• First Posted: October 8, 2025
• Study Start: December 5, 2025
• Primary Completion (Estimated): November 1, 2026
• Study Completion (Estimated): December 31, 2026
• Last Updated: December 10, 2025

Record last verified: 2025-09

Data Sharing

• IPD Sharing: Will not share