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Longitudinal visual acuity development in ZIKV-exposed children.

Diego da Silva Lima1, Luiz Claudio Portnoi Baran1, Russell David Hamer2

  • 1Department of Experimental Psychology, Institute of Psychology, University of São Paulo, São Paulo, Brazil.

Journal of AAPOS : the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
|January 12, 2020
PubMed
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This summary is machine-generated.

Visual acuity development in children exposed to or infected with Zika virus (ZIKV) generally progresses normally. Even children with congenital Zika syndrome (CZS) showed typical visual acuity, with one exception.

Area of Science:

  • Ophthalmology
  • Pediatrics
  • Infectious Diseases

Background:

  • Zika virus (ZIKV) infection during pregnancy poses risks to fetal development.
  • Congenital Zika syndrome (CZS) can manifest with various neurological and developmental abnormalities.
  • Understanding the long-term visual outcomes in ZIKV-affected children is crucial for comprehensive care.

Purpose of the Study:

  • To monitor visual acuity development in children with prenatal Zika virus exposure or infection.
  • To correlate visual acuity outcomes with the clinical presentation of ZIKV-affected children.
  • To establish normative visual development trajectories in this cohort.

Main Methods:

  • Prospective study design.
  • Visual acuity assessment using Teller Acuity Cards.

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  • Follow-up measurements 2-4 times during the first 30 months of life.
  • Comparison between ZIKV-exposed (ZE), ZIKV-infected (ZI), and control groups.

    • Main Results:

    • Normal visual acuity development observed in both ZIKV-exposed and ZIKV-infected children.
    • Infected children without clinical symptoms showed normal visual development.
    • Children with characteristics of congenital Zika syndrome (CZS) had generally normal visual acuity, except for one case of chorioretinal atrophy.

    Conclusions:

    • Prenatal Zika virus exposure or infection does not appear to impede normal visual acuity development in most children.
    • Children with congenital Zika syndrome (CZS) can exhibit normal visual acuity, suggesting variability in ocular manifestations.
    • Visual development in ZIKV-affected children in southeastern Brazil appears to follow typical patterns, even in infected cases without CZS symptoms.