[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100498469":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":10,"centralContacts":15,"locations":26,"responsibleParty":52,"collaborators":56,"id":74,"slug":10,"hasResults":75,"nctId":76,"briefTitle":77,"officialTitle":78,"acronym":79,"eligibilityCriteria":80,"healthyVolunteers":81,"sex":82,"minAge":83,"maxAge":84,"enrollmentInfo":85,"targetDuration":10,"studyType":88,"phases":10,"briefSummary":89,"conditions":90,"keywords":10,"overallStatus":29,"whyStopped":10,"lastUpdateSubmitDate":94,"lastUpdatePostDateStruct":95,"startDateStruct":98,"completionDateStruct":100,"leadSponsor":102,"locationsCount":103},{"fullName":5,"class":6},"Shanghai Eye Disease Prevention and Treatment Center","OTHER",[8,12],{"label":9,"type":10,"description":11,"interventionNames":10},"Myopes",null,"To collect the ocular data among myopic children.",{"label":13,"type":10,"description":14,"interventionNames":10},"Non-myopes","To collect the ocular data among non-myopic children.",[16,22],{"name":17,"role":18,"phone":19,"phoneExt":20,"email":21},"Xun Xu, MD","CONTACT","021-53555032","86","drxuxun@sjtu.edu.cn",{"name":23,"role":18,"phone":24,"phoneExt":20,"email":25},"Xiangui He, PhD","15000755422","xianhezi@163.com",[27,44],{"facility":28,"status":29,"city":30,"state":31,"zip":32,"country":33,"cosmosGeoPoint":34,"geoPoint":39,"contacts":40},"Shanghai Eye Disease Prevention & Treatment Center","RECRUITING","Shanghai","Shanghai Municipality","200040","China",{"type":35,"coordinates":36},"Point",[37,38],121.45806,31.22222,{"lat":38,"lon":37},[41],{"name":17,"role":18,"phone":42,"phoneExt":10,"email":43},"86-13386259538","drxuxun@tom.com",{"facility":5,"status":29,"city":30,"state":10,"zip":10,"country":33,"cosmosGeoPoint":45,"geoPoint":47,"contacts":48},{"type":35,"coordinates":46},[37,38],{"lat":38,"lon":37},[49],{"name":50,"role":18,"phone":51,"phoneExt":10,"email":25},"Xiangui He","8602153555032",{"type":53,"investigatorFullName":54,"investigatorTitle":55,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","Jiannan Huang","Doctor",[57,59,61,63,65,67,69,72],{"name":58,"class":6},"Tongji Hospital",{"name":60,"class":6},"Sichuan Provincial People's Hospital",{"name":62,"class":6},"Shandong University of Traditional Chinese Medicine",{"name":64,"class":6},"People's Hospital of Ningxia Hui Autonomous Region",{"name":66,"class":6},"First Affiliated Hospital of Kunming Medical University",{"name":68,"class":6},"First Affiliated Hospital of Guangxi Medical University",{"name":70,"class":71},"Affiliated Hospital of Inner Mongolia Minzu University","UNKNOWN",{"name":73,"class":71},"Xinjiang Hospital of Traditional Chinese Medicine","100498469",false,"NCT05770661","China Axial Length Study","Axial Length Study of Children and Adolescents in Ten Provinces of China","CALS","Inclusion Criteria:\n\n* Aged 3 to 18 years\n* Have been lived in the research areas for at least one year, and will not move to other places in the following two years\n* Parents or guardians sign an informed consent form, and children over 6 years old need oral consent to participate\n\nExclusion Criteria:\n\n* Mental diseases, unable to cooperate to complete the eye assessment\n* Ophthalmic diseases, inability to cooperate to complete the inspection",true,"ALL","3 Years","18 Years",{"count":86,"type":87},30000,"ESTIMATED","OBSERVATIONAL","The primary objective of this multi-center, observational study is to establish the reference ranges of axial length in Chinese children and adolescents.\n\n30,000 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.",[91,92,93],"Axial Length","Myopia","Child Development","2025-12-11",{"date":96,"type":97},"2025-12-18","ACTUAL",{"date":99,"type":97},"2023-03-10",{"date":101,"type":87},"2026-12-31",{"name":5,"class":6},2]