Ophthalmologic characteristics and outcomes of children with cortical visual impairment and cerebral palsy

Insights

Children with cortical visual impairment (CVI) and cerebral palsy (CP) show more eye problems and poorer long-term outcomes from strabismus surgery compared to those with CVI alone. This highlights key differences in pediatric visual impairment management.

Area of Science:

  • Ophthalmology
  • Pediatrics
  • Neurology

Background:

  • Cortical visual impairment (CVI) is a leading cause of vision loss in children.
  • Cerebral palsy (CP) co-occurs in about half of children with CVI.
  • The comparative characteristics and surgical outcomes for children with CVI and co-occurring CP (CVI+CP) versus CVI without CP (CVI-CP) are not well understood.

Purpose of the Study:

  • To compare the ophthalmic characteristics and strabismus surgery outcomes in children with CVI+CP versus CVI-CP.
  • To identify differences in refractive error, optic atrophy, strabismus prevalence, and surgical success rates between the two groups.
  • To evaluate long-term strabismus surgery outcomes in pediatric patients with CVI, stratified by the presence or absence of CP.

Main Methods:

  • Retrospective review of medical records for children diagnosed with CVI between 2013 and 2019.
  • Comparison of presentation characteristics, including refractive error, optic atrophy, and strabismus, between CVI+CP and CVI-CP groups.
  • Analysis of strabismus surgery outcomes, including ocular alignment and long-term follow-up, for both groups.

Main Results:

  • Children with CVI+CP had higher rates of significant refractive error (53.6% vs 41.2%), optic atrophy (46.4% vs 32.7%), and strabismus (82.8% vs 72.5%) at presentation.
  • While immediate post-operative alignment rates were similar (30% vs 63.6%), long-term outcomes (≥8 years) showed significantly worse results for CVI+CP patients (0% vs 100%).
  • Visual acuity at presentation and improvement rates did not differ significantly between the CVI+CP and CVI-CP groups.

Conclusions:

  • Children with CVI+CP exhibit a greater prevalence of ophthalmic comorbidities compared to those with CVI-CP.
  • Long-term outcomes following strabismus surgery appear to be poorer in children with CVI+CP.
  • These findings underscore the importance of considering co-occurring CP when managing visual impairment and strabismus in pediatric patients.
Abstract

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