Myopia, Refraction Error
Conditions
Brief summary
To determine the longitudinal changes of age and refraction in predicting myopia progression with risk under the coronavirus disease 2019 (COVID-19) pandemic in a 3-year follow-up of a Chinese cohort.
Detailed description
This was part of the large-scale Tianjin Eye Study, a population-based cohort study that longitudinally investigates the relationship between the age, refraction, and development of childhood RE in Tianjin, China.
Interventions
OTHERscreening
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.
Sponsors
Tianjin Eye Hospital
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
6 Years to 15 Years
Healthy volunteers
Yes
Inclusion criteria
* no concurrent eye disease; * age 6-15 years.
Exclusion criteria
* significant systemic illnesses * 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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| changes of sphere | change from baseline at 36 months | changes of sphere |
| changes of cylinder | change from baseline at 36 months | changes of cylinder |
| changes of spherical equivalent | change from baseline at 36 months | changes of spherical equivalent |
| changes and distribution of visual acuity | change from baseline at 36 months | changes and distribution of visual acuity |
Countries
China
Outcome results
None listed