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Related Experiment Videos

Normative contrast sensitivity data for young children.

J E Scharre1, S A Cotter, S S Block

  • 1Illinois College of Optometry, Chicago.

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|November 1, 1990
PubMed
Summary

Contrast sensitivity (CS) in children aged 3-7 years was measured using the Vistech Contrast Sensitivity distance chart (VCTS 6500). Results show children have lower CS than adults, and adult-like levels are not reached by age 7.

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Area of Science:

  • Ophthalmology
  • Pediatric Vision
  • Visual Neuroscience

Background:

  • Contrast sensitivity (CS) is crucial for visual function.
  • Assessing CS in young children presents unique challenges.
  • Establishing normative data is essential for pediatric eye care.

Purpose of the Study:

  • Evaluate the Vistech Contrast Sensitivity distance chart (VCTS 6500) for measuring CS in children aged 3-7 years.
  • Determine the effectiveness of the VCTS 6500 technique in young children.
  • Establish normative contrast sensitivity function (CSF) data for this pediatric age group.

Main Methods:

  • Measured CS in 286 children (ages 3-7) using the VCTS 6500 chart under binocular and monocular conditions.
  • Obtained measurable contrast sensitivity functions (CSFs) from 241 children (84%) binocularly and 229 (80%) monocularly.

Related Experiment Videos

  • Compared normative data from 219 binocular and 208 monocular CSFs of visually normal children with data from 50 visually normal young adults.

    • Main Results:

    • Significant age-related effects on CS were observed between 3 and 7 years.
    • Children demonstrated significantly lower contrast sensitivity compared to adults.
    • Adult-like levels of CS were not achieved by age 7.
    • While children's mean contrast thresholds were within VCTS 6500 norms, high variability in CSFs limits diagnostic use in the young.

    Conclusions:

    • The VCTS 6500 can be used to measure CS in children, but normative data are age-specific.
    • Children aged 3-7 years have developing contrast sensitivity, not yet reaching adult levels.
    • Clinicians can use the presented normative data to aid in evaluating CS in young children using the VCTS 6500, acknowledging its variability for diagnostic purposes.