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Relationship between visual skills and performance on saccadic eye movement testing

M T Kulp1, P P Schmidt

  • 1The Ohio State University, College of Optometry, Columbus 43210, USA.

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|May 20, 1998
PubMed
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Visual difficulties, like poor stereoacuity, can impact saccadic eye movement test performance in young children. Children with visual deficits may perform worse on tests like the King-Devick saccade test.

Area of Science:

  • Ophthalmology
  • Developmental Neuroscience
  • Pediatric Optometry

Background:

  • Saccadic eye movements are crucial for visual processing and reading.
  • The influence of specific visual skills on saccadic eye movement test performance remains largely unexamined in young children.
  • Common clinical tests for saccadic eye movements include the New York State Optometric Association King-Devick (NYSOA K-D) and Developmental Eye Movement (DEM) tests.

Purpose of the Study:

  • To investigate the relationship between visual skills and performance on the NYSOA K-D and DEM saccadic eye movement tests.
  • To determine if visual deficits affect saccadic eye movement test outcomes in kindergartners and first graders.

Main Methods:

  • A masked investigation was conducted on 181 children (mean age 6.25 years).

Related Experiment Videos

  • Participants completed the NYSOA K-D and DEM tests.
  • Visual skills were assessed using a Modified Clinical Technique (MCT) vision screening and a Randot stereoacuity test.

    • Main Results:

    • Total errors on the NYSOA K-D were significantly associated with MCT screening referral (p=0.015) and stereoacuity worse than 100 seconds of arc (p=0.011).
    • A trend suggested a link between DEM ratio and stereoacuity worse than 50 seconds of arc.
    • In children who passed the MCT screening, stereoacuity was not significantly related to NYSOA K-D or DEM performance.

    Conclusions:

    • Visual difficulties, particularly deficits in stereoacuity, may negatively impact performance on the NYSOA K-D saccadic eye movement test in young children.
    • These findings highlight the importance of considering overall visual function when interpreting saccadic eye movement test results in pediatric populations.