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Associations between hyperopia and other vision and refractive error characteristics.

Marjean Taylor Kulp1, Gui-Shuang Ying, Jiayan Huang

  • 1*OD, MS, FAAO †PhD ‡MS §MD, MSCE ∥OD, FAAO **PhD, OD, FAAO ††OD, PhD, FAAO The Ohio State University College of Optometry, Columbus, Ohio (MTK); University of Pennsylvania, Philadelphia, Pennsylvania (G-sY, JH, MM); Children's Hospital of Pennsylvania, Philadelphia, Pennsylvania (GQ); Pennsylvania College of Optometry at Salus University, Philadelphia, Pennsylvania (EBC); Northeastern State University Oklahoma College of Optometry, Tahlequah, Oklahoma (LAC); University of California, Berkeley School of Optometry, Berkeley, California (DAO-B); New England College of Optometry, Boston, Massachusetts (BDM).

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|March 19, 2014
PubMed
Summary
This summary is machine-generated.

Preschoolers with significant hyperopia (greater than +3.25 diopters) showed higher rates of amblyopia and strabismus. Increased hyperopia severity correlated with worse outcomes, including reduced stereoacuity.

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Area of Science:

  • Ophthalmology
  • Pediatric Optometry
  • Vision Science

Background:

  • Hyperopia is a common refractive error in children.
  • Early identification and management of refractive errors are crucial for visual development.
  • The impact of significant hyperopia on visual function in preschoolers requires further investigation.

Purpose of the Study:

  • To examine the association between hyperopia exceeding +3.25 diopters (D) and key visual conditions in preschoolers.
  • To assess the relationship between hyperopia severity and the prevalence of amblyopia, strabismus, anisometropia, astigmatism, and reduced stereoacuity.

Main Methods:

  • A cohort of 4040 preschoolers (3-5 years old) underwent comprehensive vision examinations, including cycloplegic refraction.
  • Hyperopia was categorized into severity levels, with specific definitions for significant hyperopia and its interocular differences.
  • Visual acuity, cover testing, and stereoacuity were assessed, with visual acuity retested under full cycloplegic correction when necessary.

Main Results:

  • Children with hyperopia > +3.25 D exhibited significantly higher proportions of amblyopia (34.5% vs. 2.8%) and strabismus (17.0% vs. 2.2%) compared to peers without hyperopia.
  • Higher levels of hyperopia severity were strongly associated with increased rates of amblyopia and strabismus.
  • Significant hyperopia was also linked to higher prevalence of anisometropia (26.9% vs. 5.1%) and astigmatism (29.4% vs. 10.3%), and worse stereoacuity.

Conclusions:

  • Significant hyperopia in preschoolers is a critical risk factor for developing amblyopia and strabismus.
  • The magnitude of hyperopia directly correlates with the increased risk and severity of these visual impairments.
  • Even in the absence of strabismus or amblyopia, significant hyperopia is associated with reduced stereoacuity, highlighting the importance of early detection and intervention.