NCT07119723

Brief Summary

Ophthalmologic screening performs annually. Main information collected: gender, age, race, school, visual acuity, autorefractive results.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100,000

participants targeted

Target at P75+ for all trials

Timeline
8mo left

Started Jun 2020

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress90%
Jun 2020Dec 2026

Study Start

First participant enrolled

June 1, 2020

Completed
5.2 years until next milestone

First Submitted

Initial submission to the registry

July 30, 2025

Completed
14 days until next milestone

First Posted

Study publicly available on registry

August 13, 2025

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2026

Last Updated

August 13, 2025

Status Verified

August 1, 2025

Enrollment Period

6.6 years

First QC Date

July 30, 2025

Last Update Submit

August 5, 2025

Conditions

MyopiaEnvironment

Outcome Measures

Primary Outcomes (1)

  • spherical equivalent refraction

    From January 2020 to December 2026

Eligibility Criteria

Age6 Years - 15 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)
Sampling MethodProbability Sample
Study Population

Students aged 6-15 years without strabismus, amblyopia, or other ocular diseases.

You may qualify if:

  • years old

You may not qualify if:

  • Students with strabismus, amblyopia, or other ocular diseases.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tianjin medical university eye hospital

Tianjin, China

Location

MeSH Terms

Conditions

Myopia

Condition Hierarchy (Ancestors)

Refractive ErrorsEye Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Target Duration
4 Years
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

July 30, 2025

First Posted

August 13, 2025

Study Start

June 1, 2020

Primary Completion (Estimated)

December 30, 2026

Study Completion (Estimated)

December 30, 2026

Last Updated

August 13, 2025

Record last verified: 2025-08

Locations

CN(1)