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Viewing Strategy Training in Children With (Cerebral) Visual Impairment

RecruitingNAAges 5 Years - 12 YearsAllRoyal Dutch Visio
NCT05600140 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

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. The 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.

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📋 Eligibility rules (as published)
Inclusion criteria typically developing children with normal vision: * Age 5-12 years * linear distant visual acuity of 0.1 logMAR or better * Verbal IQ above 70 * Absence of developmental disorders or psychiatric problems like ASS or AD(H)D Inclusion criteria for children with ocular visual impairment: * Age 5-12 years * Children with linear distance visual acuity better \<=1.3logMAR and \>0.1 logMAR * Intact central visual field (at least \> 30 degrees) * Children with a verbal IQ above 70 * Absence of developmental disorders or psychiatric problems like ASS or AD(H)D Inclusion criteria for children with cerebral visual impairment: * Age 5-12 years * Linear distance visual acuity \<=0.3 logMAR * Having the diagnosis CVI (verified by ophthalmologists) * Children with a verbal IQ above 70 * Absence of psychiatric problems like ASS or AD(H)D Additional 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. Exclusion criteria: * Children with VI: linear near visual acuity \>1.0 logMAR * Children with visual field defect \< 30 degrees * Children with a verbal IQ below 70 * Children who attended a form of vision training in the past two years * Children with psychiatric problems like ASS or AD(H)D * Auditory impairment or language impairments * Major life events during training
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What it tests

  • Viewing strategy training
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Where

1 site
Royal Dutch Visio
Nijmegen, Netherlands
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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