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Related Experiment Videos

[Functional eye testing in the mentally retarded]

J Van Hof-Van Duin, G Mohn, A M Batenburg-Plenter

    Tijdschrift Voor Kindergeneeskunde
    |April 1, 1982
    PubMed
    Summary
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    Simple clinical tests effectively assessed vision in severely mentally handicapped children. Most children received a confident diagnosis, identifying functional blindness and visual field defects early.

    Area of Science:

    • Ophthalmology
    • Developmental Pediatrics
    • Neuroscience

    Context:

    • Assessing visual function in severely mentally handicapped children presents unique challenges.
    • Sheridan's simple clinical testing procedures offer a practical approach.
    • Visuo-motor behavior studies in animals informed the methodology.

    Purpose:

    • To evaluate the efficacy of Sheridan's simple clinical testing procedures for assessing visual functions in severely mentally handicapped children.
    • To determine the presence or absence of functional vision in a cohort of 30 children.
    • To identify specific visual impairments such as functional blindness and visual field restrictions.

    Summary:

    • Vision was tested in 30 severely mentally handicapped children using Sheridan's methods.

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  • Functional vision was confidently assessed in 29 out of 30 children.
  • Thirteen children were identified as functionally blind, and visual field defects were noted in 10 out of 17 assessed children.

    • Impact:

    • Highlights the importance of early detection of visual defects in this population.
    • Demonstrates the utility of adapted clinical tests for assessing vision in challenging pediatric cases.
    • Provides data on the prevalence of visual impairments among severely mentally handicapped children.