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A visual skills inventory for children with neurological impairments

D L McCulloch1, R T Mackie, G N Dutton

  • 1Vision Sciences, Glasgow Caledonian University, Glasgow, Scotland, UK. dlmc@gcal.ac.uk

Developmental Medicine and Child Neurology
|September 21, 2007
PubMed

Insights

Caregiver evaluations of visual skills in children with neurological impairments correlate with comprehensive assessments. Specific questions about visual recognition and social interaction effectively predict vision quality in these children.

Area of Science:

  • Pediatric Ophthalmology
  • Neurodevelopmental Disabilities
  • Vision Science

Background:

  • Children with neurological impairments frequently experience visual deficits.
  • Quantifying these visual deficits can be challenging for clinicians and caregivers.
  • A validated method for assessing vision in this population is needed.

Purpose of the Study:

  • To compare caregiver-reported visual skills with objective visual assessments in children with neurological impairments.
  • To identify specific questions from a visual skills inventory that are most predictive of visual acuity.
  • To explore the relationship between caregiver observations and clinical measures of vision.

Main Methods:

  • A cohort of 76 children with intellectual and/or motor impairments (age 7 months to 16 years) completed a visual skills inventory.
  • Caregiver responses were augmented with clinical history and compared to visual evoked potential (VEP) and acuity card measures.
  • Exploratory factor analysis was used to identify underlying factors within the visual skills inventory.

Main Results:

  • Visual acuity in the participants ranged from normal to no light perception.
  • Caregiver responses to visual skills questions positively correlated with objective measures of visual acuity.
  • Two significant factors emerged: Factor 1 related to visual recognition, and Factor 2 to visually mediated social interactions, both correlating with VEP and acuity card thresholds.

Conclusions:

  • Caregiver evaluations of visual skills provide valid information regarding the vision quality in children with neurological impairments.
  • Specific questions focusing on visual recognition and social interaction are highly predictive of visual acuity.
  • The study identifies key indicators for assessing vision in children with complex neurological conditions.

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