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Related Experiment Videos

Normal visual acuity in 17--18 year olds.

Josefin Ohlsson1, Gerardo Villarreal

  • 1Department of Ophthalmology, Institute of Clinical Neuroscience, Göteborg University, Sweden. josefin.ohlsson@neuro.gu.se

Acta Ophthalmologica Scandinavica
|July 21, 2005
PubMed
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Visual acuity norms in teenagers aged 17-18 were established, revealing better-than-expected results. Healthy young eyes show excellent visual acuity and minimal differences between them.

Area of Science:

  • Ophthalmology
  • Pediatric Optometry
  • Public Health

Background:

  • Establishing normative visual acuity (VA) data is crucial for monitoring eye health in adolescents.
  • Previous studies have provided baseline data, but longitudinal updates are necessary to reflect current population health.

Purpose of the Study:

  • To determine the standard visual acuity for 17-18-year-olds.
  • To compare current visual acuity in adolescents with established norms.

Main Methods:

  • A cohort of 116 adolescents (initially examined at 12-13 years old) underwent re-examination.
  • Best corrected monocular visual acuity (VA) was measured using the revised 2000 ETDRS logMAR chart.

Main Results:

  • The mean best-corrected visual acuity was -0.10 logMAR.

Related Experiment Videos

  • After excluding participants with significant refractive errors or ocular pathology, the mean VA improved to -0.12 logMAR.
  • The average difference in visual acuity between the two eyes was minimal (0.04 logMAR).

    • Conclusions:

    • Visual acuity in healthy 17-18-year-olds is significantly better than 0.0 logMAR.
    • Adolescents exhibit low interocular differences in visual acuity, indicating good binocular vision.