[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100633896":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":11,"centralContacts":20,"locations":26,"responsibleParty":50,"collaborators":11,"id":53,"slug":11,"hasResults":54,"nctId":55,"briefTitle":56,"officialTitle":57,"acronym":11,"eligibilityCriteria":58,"healthyVolunteers":54,"sex":59,"minAge":60,"maxAge":11,"enrollmentInfo":61,"targetDuration":11,"studyType":64,"phases":65,"briefSummary":67,"conditions":68,"keywords":11,"overallStatus":29,"whyStopped":11,"lastUpdateSubmitDate":72,"lastUpdatePostDateStruct":73,"startDateStruct":76,"completionDateStruct":78,"leadSponsor":80,"locationsCount":81},{"fullName":5,"class":6},"Lisbon Academic Medical Center - Centro Académico de Medicina de Lisboa","NETWORK",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Unique","EXPERIMENTAL",null,[13],"Device: Prismatic low-powered lenses",[15],{"type":16,"name":17,"description":18,"armGroupLabels":19,"otherNames":11},"DEVICE","Prismatic low-powered lenses","Participants perform biplanar X-ray before and after lens application",[9],[21],{"name":22,"role":23,"phone":24,"phoneExt":11,"email":25},"João Alves da Silva, MD","CONTACT","+351935457064","joao-luis@edu.ulisboa.pt",[27],{"facility":28,"status":29,"city":30,"state":31,"zip":11,"country":32,"cosmosGeoPoint":33,"geoPoint":38,"contacts":39},"CAML","RECRUITING","Lisbon","Lisbon District","Portugal",{"type":34,"coordinates":35},"Point",[36,37],-9.1498,38.72509,{"lat":37,"lon":36},[40,41,43,46,48],{"name":22,"role":23,"phone":24,"phoneExt":11,"email":25},{"name":22,"role":42,"phone":11,"phoneExt":11,"email":11},"PRINCIPAL_INVESTIGATOR",{"name":44,"role":45,"phone":11,"phoneExt":11,"email":11},"Pedro Fernandes, PhD","SUB_INVESTIGATOR",{"name":47,"role":45,"phone":11,"phoneExt":11,"email":11},"Ivo Álvares Furtado, PhD",{"name":49,"role":45,"phone":11,"phoneExt":11,"email":11},"Fábio Trindade, PhD",{"type":42,"investigatorFullName":51,"investigatorTitle":52,"investigatorAffiliation":5,"oldNameTitle":11,"oldOrganization":11},"João Alves da Silva","MD","100633896",false,"NCT07532642","Radiographic Head and Neck Positional Changes in Response to Usage of Low-powered Prismatic Lenses","Radiographic Head and Neck Positional Changes in Response to Oculomotor Muscles Tonic Modification Using Low-powered Prismatic Lenses","Inclusion Criteria:\n\nPresentation of diagnostic criteria for Postural Deficiency Syndrome comprising of\n\n* Two or more cardinal signs of Postural Deficiency Syndrome\n* Clinical presentation of asymmetrical stance and head extension and rotation\n* Presence of typical directional pseudoscotoma described in this syndrome\n\nExclusion Criteria:\n\n* Vision under 8\u002F10, strabismus or nistagmus;\n* Previous eye or vestibular surgery;\n* Known disease affecting the central nervous system or inner ear;\n* Medication with known interference with balance and posture and\n* treatment for postural and movement disorders in the previous year.","ALL","18 Years",{"count":62,"type":63},20,"ESTIMATED","INTERVENTIONAL",[66],"NA","This study aims to investigate the short-term modifications in head and neck positioning by usage of low-powered prismatic lenses in patients with Postural Deficiency Syndrome (PDS). A matched pair observation study was designed. Evaluation is carried out using low dose biplanar radiography before treatment and 15 minutes after lenses application.",[69,70,71],"Postural Neck Pain","Postural Imbalance","Postural Disorders","2026-04-13",{"date":74,"type":75},"2026-04-16","ACTUAL",{"date":77,"type":75},"2023-03-27",{"date":79,"type":63},"2026-05-31",{"name":5,"class":6},1]