[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100633896":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":11,"centralContacts":20,"locations":26,"responsibleParty":51,"collaborators":11,"id":54,"slug":55,"hasResults":56,"nctId":57,"briefTitle":58,"officialTitle":59,"acronym":11,"eligibilityCriteria":60,"healthyVolunteers":56,"sex":61,"minAge":62,"maxAge":11,"enrollmentInfo":63,"targetDuration":11,"studyType":66,"phases":67,"briefSummary":69,"conditions":70,"keywords":11,"overallStatus":29,"whyStopped":11,"lastUpdateSubmitDate":74,"lastUpdatePostDateStruct":75,"startDateStruct":78,"completionDateStruct":80,"leadSponsor":82,"locationsCount":83},{"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,"countryCode":33,"cosmosGeoPoint":34,"geoPoint":39,"contacts":40},"CAML","RECRUITING","Lisbon","Lisbon District","Portugal","PT",{"type":35,"coordinates":36},"Point",[37,38],-9.1498,38.72509,{"lat":38,"lon":37},[41,42,44,47,49],{"name":22,"role":23,"phone":24,"phoneExt":11,"email":25},{"name":22,"role":43,"phone":11,"phoneExt":11,"email":11},"PRINCIPAL_INVESTIGATOR",{"name":45,"role":46,"phone":11,"phoneExt":11,"email":11},"Pedro Fernandes, PhD","SUB_INVESTIGATOR",{"name":48,"role":46,"phone":11,"phoneExt":11,"email":11},"Ivo Álvares Furtado, PhD",{"name":50,"role":46,"phone":11,"phoneExt":11,"email":11},"Fábio Trindade, PhD",{"type":43,"investigatorFullName":52,"investigatorTitle":53,"investigatorAffiliation":5,"oldNameTitle":11,"oldOrganization":11},"João Alves da Silva","MD","100633896","radiographic-head-and-neck-positional-changes-in-response-to-usage-of-low-powered-prismatic-lenses-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":64,"type":65},20,"ESTIMATED","INTERVENTIONAL",[68],"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.",[71,72,73],"Postural Neck Pain","Postural Imbalance","Postural Disorders","2026-04-13",{"date":76,"type":77},"2026-04-16","ACTUAL",{"date":79,"type":77},"2023-03-27",{"date":81,"type":65},"2026-05-31",{"name":5,"class":6},1]