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Related Experiment Video

Updated: Jun 15, 2025

Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
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The Correlation Between Eye Strain on Visual Acuity with Refractive Error Among Children.

Kannan Uma Soundari1, G Bhuvaneswari1, A Helen M Perdita2

  • 1Saveetha College of Nursing, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India.

Journal of Pharmacy & Bioallied Sciences
|June 13, 2025
PubMed
Summary

Children

Keywords:
Childrenconvergence insufficiencydiopterseyestrainmyopia refractive errorvariablevisual acuity

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Area of Science:

  • Ophthalmology
  • Pediatric Health
  • Public Health

Background:

  • Visual impairment is a major public health concern, particularly in children.
  • Increased computer use among school-aged children contributes to eyestrain and visual discomfort.
  • Uncorrected refractive error is a leading cause of vision loss in children, impacting academic and socio-emotional development.

Purpose of the Study:

  • To investigate the impact of interventions on reducing eyestrain and improving visual acuity in children.
  • To assess the relationship between sociodemographic factors, eye health, and convergence insufficiency symptoms.

Main Methods:

  • A true experimental study involving two groups: an experimental group (n=85) and a control group (n=85).
  • Data collected via structured questionnaires assessing sociodemographic and eye health variables.
  • Convergence Insufficiency Symptom Survey used to evaluate symptoms.

Main Results:

  • The experimental group showed a significant reduction in eyestrain and refractive error, with improved visual acuity (P < 0.001).
  • Participants in the experimental group experienced moderate to complete recovery compared to the control group.
  • Refractive error decreased by an average of -0.5 diopters in the experimental group.

Conclusions:

  • Children experiencing eyestrain show impacts on visual acuity.
  • Interventions can effectively reduce eyestrain and improve visual outcomes in children.
  • Findings highlight the link between eyestrain, visual acuity, and convergence insufficiency symptoms in pediatric populations.