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Related Experiment Videos

Randot stereoacuity testing in young children.

Marjean Taylor Kulp1, G Lynn Mitchell

  • 1The Ohio State University College of Optometry Columbus, Ohio 43218-2342, USA.

Journal of Pediatric Ophthalmology and Strabismus
|December 31, 2005
PubMed
Summary
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The Randot stereoacuity test is highly completable in children aged 3-7 years, with most 4-year-olds achieving 70 seconds of arc or better. This study provides normative data for this common vision test.

Area of Science:

  • Ophthalmology
  • Pediatric Vision
  • Stereopsis Assessment

Background:

  • The Randot test is a widely used stereoacuity test with child-friendly targets.
  • Limited data exists on its application in very young children.

Purpose of the Study:

  • To determine the completion rate of the Randot test in young children (3-7 years).
  • To establish normative stereoacuity values for this age group.

Main Methods:

  • Administered the Randot stereoacuity test to 264 children aged 3-7 years.
  • Excluded children with vision impairments to isolate test comprehension.
  • Calculated completion rates and cumulative percentages by age.

Main Results:

  • Achieved a high completion rate of 98.5%.

Related Experiment Videos

  • Median stereoacuity improved with age, from 100 seconds of arc (3-year-olds) to 40-50 seconds of arc (5-7-year-olds).
  • Significant age-related differences in stereoacuity were observed (P < .001).

    • Conclusions:

    • The Randot test is feasible for assessing stereoacuity in most preschool and school-aged children.
    • Normative values suggest 4-year-olds should achieve ≤70 seconds of arc and older children ≤50 seconds of arc, assuming normal vision.