MyopiaNCT07119723
Environmental Factors and Myopia Prevalence Among Uyghur Students in Remote China
An observational study of Myopia and Environment, run by Tianjin Medical University Eye Hospital at 1 site in China.
Trial summary
Ophthalmologic screening performs annually. Main information collected: gender, age, race, school, visual acuity, autorefractive results. Read more about this study
- Who is it for?
- Ages 6 to 15 yearsHealthy volunteers can take part
- Conditions the study is for
- Myopia, Environment
- How many people
- 100,000 participants
- Where
- 1 siteChina
- Study dates
- 1 Jun 2020to 30 Dec 2026
- How long will I take part?
- 4 Years
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 6 to 15 years
- All sexes
- Healthy volunteers accepted
- Child
Study population: Students aged 6-15 years without strabismus, amblyopia, or other ocular diseases.
Who may be able to join
- 6 -15 years old
Who cannot join
- Students with strabismus, amblyopia, or other ocular diseases.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
About this study
Ophthalmologic screening performs annually. Main information collected: gender, age, race, school, visual acuity, autorefractive results.
- Conditions
- Myopia, Environment
- Medical subject headings
- Myopia
What is being measured
The primary outcome is the main question the study is designed to answer.
spherical equivalent refraction
Measured: From January 2020 to December 2026
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Aug 2025
- Study start1 Jun 2020
- Primary completion30 Dec 2026 (estimated)
- Study completion30 Dec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for MyopiaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Enrolment
- 100,000 participants (estimated)
- Target duration
- 4 Years
Sponsor and investigators
- Lead sponsor
- Tianjin Medical University Eye Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Chuanzhen Zheng, Tianjin Medical University Eye Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07119723
- Sponsor's protocol ID
- 20240902
- Status last verified
- Aug 2025
- First submitted
- 30 Jul 2025
- Last updated
- 13 Aug 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 13 Aug 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Environmental Factors and Myopia Prevalence Among Uyghur Students in Remote China
- ClinicalTrials.gov ID
- NCT07119723
- Acronym / sponsor ID
- 20240902
- Conditions
- Myopia, Environment
- Study type
- Observational
- Recruitment status
- Enrolling by invitation
- Enrolment
- 100,000 participants (estimated)
- Lead sponsor
- Tianjin Medical University Eye HospitalUniversity, hospital or other
- Study start
- 1 Jun 2020 (actual)
- Primary completion
- 30 Dec 2026 (estimated)
- Study completion
- 30 Dec 2026 (estimated)
- First posted
- 13 Aug 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Ophthalmologic screening performs annually. Main information collected: gender, age, race, school, visual acuity, autorefractive results.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Target follow-up
- 4 Years
Who may qualify
- Ages
- 6 to 15 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
- Study population
- Students aged 6-15 years without strabismus, amblyopia, or other ocular diseases.
Key inclusion criteria (1 listed)
- 6 -15 years old
Key exclusion criteria (1 listed)
- Students with strabismus, amblyopia, or other ocular diseases.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
spherical equivalent refraction
Time frame: From January 2020 to December 2026
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Aug 2025.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Myopia and Environment, run by Tianjin Medical University Eye Hospital at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: enrolling by invitation, as of the sponsor's last update on 13 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
spherical equivalent refraction (time frame: From January 2020 to December 2026). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Aug 2025.