Nearsightedness Clinical Trials

Senior kindergarten children, Beijing hyperopic reserve census

This is a population-based census of senior kindergarten children across Beijing, covering more than 2,200 kindergartens and approximately 134,000 participants. Initiated by the Beijing Municipal Commission of Education, the study was implemented by Capital Medical University with support from Beijing Tongren Hospital. All children underwent visual acuity tests and comprehensive ocular biometry, including axial length and corneal curvature measurements, as well as non-cycloplegic autorefraction. A standardized parental questionnaire was used to collect information on demographics, family myopia history, outdoor activity, and visual behaviors. Nearly half of the screened children were referred to Beijing Tongren Hospital and other member hospitals of the Hyperopic Reserve Protection Alliance affiliated with Capital Medical University for cycloplegic refraction re-examination (gold standard refractive measurement).~After referral, children may receive additional examinations and clinic