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Related Experiment Videos

Eye dominance in children: a longitudinal study

G Dellatolas1, F Curt, C Dargent-Paré

  • 1INSERM U169, Recherches en Epidémiologie, Villejuif, France. dellatol@vjf.inserm.fr

Behavior Genetics
|July 22, 1998
PubMed
Summary

Parental eye dominance showed no association with their children's eye preference in a study of preschool children. While handedness correlated with eyedness, parental influence was minimal, with most children exhibiting stable eye dominance over time.

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Area of Science:

  • Ophthalmology
  • Developmental Psychology
  • Genetics

Background:

  • Eye dominance, a key aspect of visual-behavioral development, is understood to have potential genetic influences.
  • Previous research suggests a possible link between parental and offspring eye dominance, though evidence remains limited.

Purpose of the Study:

  • To investigate the association between parental eye dominance and eye dominance in preschool children.
  • To examine the stability of eye dominance in children over a 2-year period.
  • To explore relationships between eye dominance, handedness, age, and sex.

Main Methods:

  • A cohort of 807 preschool children (aged 3-6) and their parents participated.
  • Eye dominance was assessed in children, and parental eye preference was self-reported.

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  • A subset of 244 children underwent follow-up examinations every 6 months for 2 years.

    • Main Results:

    • No significant association was found between parental eye dominance and children's examined eye dominance.
    • Forty percent of children exhibited left-eyedness.
    • Eye dominance was associated with handedness but not significantly with age or sex.
    • Parental reports on eye preference showed strong agreement.
    • Two-thirds of children demonstrated stable eye dominance over the 2-year follow-up.
    • Stability of eye dominance appeared to increase with age and was lower in left-handed children with left-handed parents.

    Conclusions:

    • Parental eye dominance is not a strong predictor of eye dominance in preschool children.
    • Childhood eye dominance is largely stable and shows associations with handedness.
    • Further research may clarify the complex interplay of genetics and environment in eye dominance development.