[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100498469":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":10,"centralContacts":15,"locations":26,"responsibleParty":53,"collaborators":57,"id":75,"slug":76,"hasResults":77,"nctId":78,"briefTitle":79,"officialTitle":80,"acronym":81,"eligibilityCriteria":82,"healthyVolunteers":83,"sex":84,"minAge":85,"maxAge":86,"enrollmentInfo":87,"targetDuration":10,"studyType":90,"phases":10,"briefSummary":91,"conditions":92,"keywords":10,"overallStatus":29,"whyStopped":10,"lastUpdateSubmitDate":96,"lastUpdatePostDateStruct":97,"startDateStruct":100,"completionDateStruct":102,"leadSponsor":104,"locationsCount":105},{"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",[27,45],{"facility":28,"status":29,"city":30,"state":31,"zip":32,"country":33,"countryCode":34,"cosmosGeoPoint":35,"geoPoint":40,"contacts":41},"Shanghai Eye Disease Prevention & Treatment Center","RECRUITING","Shanghai","Shanghai Municipality","200040","China","CN",{"type":36,"coordinates":37},"Point",[38,39],121.45806,31.22222,{"lat":39,"lon":38},[42],{"name":17,"role":18,"phone":43,"phoneExt":10,"email":44},"86-13386259538","drxuxun@tom.com",{"facility":5,"status":29,"city":30,"state":10,"zip":10,"country":33,"countryCode":34,"cosmosGeoPoint":46,"geoPoint":48,"contacts":49},{"type":36,"coordinates":47},[38,39],{"lat":39,"lon":38},[50],{"name":51,"role":18,"phone":52,"phoneExt":10,"email":25},"Xiangui He","8602153555032",{"type":54,"investigatorFullName":55,"investigatorTitle":56,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","Jiannan Huang","Doctor",[58,60,62,64,66,68,70,73],{"name":59,"class":6},"Tongji Hospital",{"name":61,"class":6},"Sichuan Provincial People's Hospital",{"name":63,"class":6},"Shandong University of Traditional Chinese Medicine",{"name":65,"class":6},"People's Hospital of Ningxia Hui Autonomous Region",{"name":67,"class":6},"First Affiliated Hospital of Kunming Medical University",{"name":69,"class":6},"First Affiliated Hospital of Guangxi Medical University",{"name":71,"class":72},"Affiliated Hospital of Inner Mongolia Minzu University","UNKNOWN",{"name":74,"class":72},"Xinjiang Hospital of Traditional Chinese Medicine","100498469","china-axial-length-study-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":88,"type":89},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.",[93,94,95],"Axial Length","Myopia","Child Development","2025-12-11",{"date":98,"type":99},"2025-12-18","ACTUAL",{"date":101,"type":99},"2023-03-10",{"date":103,"type":89},"2026-12-31",{"name":5,"class":6},2]