Age and Refraction in Predicting Myopia Progression in COVID-19
NCT ID: NCT05305274
Last Updated: 2022-03-31
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
34400 participants
OBSERVATIONAL
2019-10-01
2021-12-01
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
COHORT
RETROSPECTIVE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
2019 screening
34,400 schoolchildren with a 36-month follow-up from 2019 to 2021.
screening
This study included 34,400 students, as part of the Tianjin Eye Study who performed a 3-year follow-up from 2019 to 2021. All participants underwent yearly noncycloplegic refraction and ocular examinations. Time-related changes in sphere, cylinder, and spherical equivalent (SE) measurements in both sexes were analyzed.
2020 screening
34,400 schoolchildren with a 36-month follow-up from 2019 to 2021.
screening
This study included 34,400 students, as part of the Tianjin Eye Study who performed a 3-year follow-up from 2019 to 2021. All participants underwent yearly noncycloplegic refraction and ocular examinations. Time-related changes in sphere, cylinder, and spherical equivalent (SE) measurements in both sexes were analyzed.
2021 screening
34,400 schoolchildren with a 36-month follow-up from 2019 to 2021.
screening
This study included 34,400 students, as part of the Tianjin Eye Study who performed a 3-year follow-up from 2019 to 2021. All participants underwent yearly noncycloplegic refraction and ocular examinations. Time-related changes in sphere, cylinder, and spherical equivalent (SE) measurements in both sexes were analyzed.
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
screening
This study included 34,400 students, as part of the Tianjin Eye Study who performed a 3-year follow-up from 2019 to 2021. All participants underwent yearly noncycloplegic refraction and ocular examinations. Time-related changes in sphere, cylinder, and spherical equivalent (SE) measurements in both sexes were analyzed.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
* age 6-15 years.
Exclusion Criteria
* ocular conditions that could affect the corneal curvature, including congenital corneal diseases,
* pterygium, keratoconus, other corneal degeneration or dystrophy conditions,
* media opacity, uveitis, glaucoma
* a history of intraocular surgery, refractive surgery,
* neurologic or retinal diseases, current corneal refractive therapy (ortho-K),
* low-dose atropine therapy for myopia control
6 Years
15 Years
ALL
Yes
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Tianjin Eye Hospital
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Yan Wang, director
Role: STUDY_CHAIR
Tianjin Eye Hospital
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
Tianjin Eye Hospital
Tianjin, , China
Countries
Review the countries where the study has at least one active or historical site.
References
Explore related publications, articles, or registry entries linked to this study.
Hu Y, Zhao F, Ding X, Zhang S, Li Z, Guo Y, Feng Z, Tang X, Li Q, Guo L, Lu C, Yang X, He M. Rates of Myopia Development in Young Chinese Schoolchildren During the Outbreak of COVID-19. JAMA Ophthalmol. 2021 Oct 1;139(10):1115-1121. doi: 10.1001/jamaophthalmol.2021.3563.
Ma D, Wei S, Li SM, Yang X, Cao K, Hu J, Fan S, Zhang L, Wang N. Progression of myopia in a natural cohort of Chinese children during COVID-19 pandemic. Graefes Arch Clin Exp Ophthalmol. 2021 Sep;259(9):2813-2820. doi: 10.1007/s00417-021-05305-x. Epub 2021 Jul 21.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
2022018
Identifier Type: -
Identifier Source: org_study_id