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Visual Function Classification System for children with cerebral palsy: development and validation.

Giovanni Baranello1,2, Sabrina Signorini3, Francesca Tinelli4

  • 1UO Neurologia Dello Sviluppo, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.

Developmental Medicine and Child Neurology
|June 11, 2019
PubMed
Summary
This summary is machine-generated.

The Visual Function Classification System (VFCS) is a validated tool for assessing how children with cerebral palsy (CP) use their vision. This reliable system aids in clinical communication and research for children with CP.

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Area of Science:

  • Ophthalmology
  • Developmental Pediatrics
  • Rehabilitation Medicine

Background:

  • Cerebral palsy (CP) often impacts visual abilities, affecting daily life functioning.
  • Standardized methods for classifying visual function in children with CP are needed for consistent clinical assessment and research.
  • Existing assessments may not fully capture the functional use of vision in daily activities for this population.

Purpose of the Study:

  • To develop and validate the Visual Function Classification System (VFCS).
  • To create a reliable and meaningful system for classifying how children with CP utilize their visual abilities in everyday life.
  • To ensure the VFCS is applicable in both clinical and research settings.

Main Methods:

  • The VFCS was developed through literature review, clinical experience, nominal group processes, and international Delphi surveys.
  • Construct validity was assessed by experts, and external validation involved various stakeholders, including patients and families.
  • Interrater reliability among professionals and with caregivers, along with test-retest reliability, was evaluated using a sample of children with CP.

Main Results:

  • The VFCS development involved multiple consensus-building phases with significant participant engagement.
  • High interrater reliability (κ=0.88) was achieved among professionals, and excellent test-retest reliability (κ=0.97) was demonstrated.
  • Moderate parent-professional interrater reliability (κ=0.51) was observed, indicating a need for clear communication protocols.

Conclusions:

  • The Visual Function Classification System (VFCS) is a valid and reliable tool for classifying visual abilities in children with cerebral palsy.
  • The VFCS can enhance communication among clinicians, identify patient needs, and facilitate patient stratification in research.
  • This system provides a standardized approach to understanding and addressing visual function challenges in children with CP.