[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100485366":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":25,"centralContacts":29,"locations":34,"responsibleParty":53,"collaborators":55,"id":59,"slug":60,"hasResults":61,"nctId":62,"briefTitle":63,"officialTitle":64,"acronym":24,"eligibilityCriteria":65,"healthyVolunteers":66,"sex":67,"minAge":68,"maxAge":69,"enrollmentInfo":70,"targetDuration":24,"studyType":73,"phases":74,"briefSummary":76,"conditions":77,"keywords":80,"overallStatus":36,"whyStopped":24,"lastUpdateSubmitDate":86,"lastUpdatePostDateStruct":87,"startDateStruct":90,"completionDateStruct":92,"leadSponsor":94,"locationsCount":95},{"fullName":5,"class":6},"Royal Dutch Visio","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Group A) early training group","EXPERIMENTAL","T0 = baseline measurement T1 = posttest (within two weeks after training) T2 = follow up measurement (6 months after training)",[13],"Behavioral: Viewing strategy training",{"label":15,"type":10,"description":16,"interventionNames":17},"Group B) late training group","T0 = baseline measurement T1 = test-retest reliability and natural development (over period 1 1\u002F2-2 months after T0) T2 = posttest (within two weeks after training)",[13],[19],{"type":20,"name":21,"description":22,"armGroupLabels":23,"otherNames":24},"BEHAVIORAL","Viewing strategy training","Children receive a visual training of viewing strategies (six weeks, 2 times a week, 30 minutes). During the training, children are instructed to use specific viewing strategies (looking in a structured direction which fits the task at hand, zooming in and out \u002F change of visual selective attentional field, visual discrimination). The verbal instructions and exercises are protocol-based. A textbook is used to describe the reactions of the children during training.",[9,15],null,[26],{"name":27,"affiliation":5,"role":28},"Bianca Huurneman, PhD","PRINCIPAL_INVESTIGATOR",[30],{"name":27,"role":31,"phone":32,"phoneExt":24,"email":33},"CONTACT","0(031)646944002","biancahuurneman@visio.org",[35],{"facility":5,"status":36,"city":37,"state":24,"zip":24,"country":38,"countryCode":39,"cosmosGeoPoint":40,"geoPoint":45,"contacts":46},"RECRUITING","Nijmegen","Netherlands","NL",{"type":41,"coordinates":42},"Point",[43,44],5.85278,51.8425,{"lat":44,"lon":43},[47,49,51],{"name":48,"role":31,"phone":24,"phoneExt":24,"email":24},"Hanna Romema, MSc",{"name":24,"role":31,"phone":24,"phoneExt":24,"email":50},"hannarozema@visio.org",{"name":52,"role":28,"phone":24,"phoneExt":24,"email":24},"Hanna Rozema, MSc",{"type":54,"investigatorFullName":24,"investigatorTitle":24,"investigatorAffiliation":24,"oldNameTitle":24,"oldOrganization":24},"SPONSOR",[56],{"name":57,"class":58},"Radboud University, Behavioural Science Institute, Nijmegen, The Netherlands","UNKNOWN","100485366","viewing-strategy-training-in-children-with-cerebral-visual-impairment-100485366",false,"NCT05600140","Viewing Strategy Training in Children With (Cerebral) Visual Impairment","Viewing Strategy Training in Children With (Cerebral) Visual Impairment: From Spontaneous Eye Movements to a Structured Viewing Strategy","Inclusion criteria typically developing children with normal vision:\n\n* Age 5-12 years\n* linear distant visual acuity of 0.1 logMAR or better\n* Verbal IQ above 70\n* Absence of developmental disorders or psychiatric problems like ASS or AD(H)D\n\nInclusion criteria for children with ocular visual impairment:\n\n* Age 5-12 years\n* Children with linear distance visual acuity better \\\u003C=1.3logMAR and \\>0.1 logMAR\n* Intact central visual field (at least \\> 30 degrees)\n* Children with a verbal IQ above 70\n* Absence of developmental disorders or psychiatric problems like ASS or AD(H)D\n\nInclusion criteria for children with cerebral visual impairment:\n\n* Age 5-12 years\n* Linear distance visual acuity \\\u003C=0.3 logMAR\n* Having the diagnosis CVI (verified by ophthalmologists)\n* Children with a verbal IQ above 70\n* Absence of psychiatric problems like ASS or AD(H)D\n\nAdditional inclusion criterion for study 2 (evaluating training effectiveness): children with (cerebral) visual impairment should have an indication for viewing strategy training. Training should not be indicated if children have no problems performing academic tasks (i.e. when speed and accuracy of visual processing is within the normal range). The age range for study 2 is 5-9 years.\n\nExclusion criteria:\n\n* Children with VI: linear near visual acuity \\>1.0 logMAR\n* Children with visual field defect \\\u003C 30 degrees\n* Children with a verbal IQ below 70\n* Children who attended a form of vision training in the past two years\n* Children with psychiatric problems like ASS or AD(H)D\n* Auditory impairment or language impairments\n* Major life events during training",true,"ALL","5 Years","12 Years",{"count":71,"type":72},60,"ESTIMATED","INTERVENTIONAL",[75],"NA","Viewing strategies are strategies used to process visual Information. Many children with visual impairment seem to lack systematic viewing strategies. However, it is unknown how viewing strategies differ between children with normal vision and children with (cerebral) visual impairment. In addition, viewing strategy training is often adopted in clinical practice, but till date there is no scientific evidence about effectiveness of this approach.\n\nThe current project has two goals: (1) to measure viewing strategies used by children with normal vision, children with ocular visual impairment and children with CVI, and (2) to evaluate whether training viewing strategies results in more efficiënt visual Information processing.",[78,79],"Vision Disorders","Vision, Low",[81,82,83,84,85],"viewing strategies","(cerebral) visual impairment","visual rehabilitation","reading strategies","visual search strategies","2026-01-05",{"date":88,"type":89},"2026-01-07","ACTUAL",{"date":91,"type":89},"2024-10-25",{"date":93,"type":72},"2026-12",{"name":5,"class":6},1]