Clinical Trial

China Children Eye Study

Study acronym: CCES
Recruiting
View on ClinicalTrials.gov →
Summary
The primary objective of this multi-center, observational study is to establish the reference ranges of axial length in Chinese children and adolescents. 30,000 children aged 3-18 years were examined with cycloplegia to collect their ocular parameters and were all followed up for three years with annual visits.
Protocol Amendment History 2 amendments
This ClinicalTrials.gov record has been amended 2 times since 2023-03-05; most recent amendment 2025-12-11.
Status change: Not Yet Recruiting → Recruiting 2025-12-01
Trial Details
NCT Number NCT05770661
Lead Sponsor Shanghai Eye Disease Prevention and Treatment Center
Collaborators: Tongji Hospital, Sichuan Provincial People's Hospital, Shandong University of Traditional Chinese Medicine, People's Hospital of Ningxia Hui Autonomous Region, First Affiliated Hospital of Kunming Medical University, First Affiliated Hospital of Guangxi Medical University, Affiliated Hospital of Inner Mongolia Minzu University, Xinjiang Hospital of Traditional Chinese Medicine
Conditions Axial Length, Myopia, Child Development
Enrollment 30,000 participants
Start Date 2023-03-10
Primary Completion 2026-12-31 (estimated)
Study Completion 2026-12-31 (estimated)
Updated on ClinicalTrials.gov 2026-08-07