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Refraction difference value variations in children and adolescents with different refractive errors.

Da-Wen Wu1,2, Ze-Yi Yang1,2, Yan Nie1,2

  • 1Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China.

International Journal of Ophthalmology
|December 19, 2024
PubMed
Summary
This summary is machine-generated.

Refraction difference value (RDV) variations differ across refractive errors in children. Total RDV, peripheral RDVs, and temporal RDVs correlate with refractive development and axial length.

Keywords:
adolescentschildrendegrees of myopiamultispectral refractive topographyrefraction difference value

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Area of Science:

  • Ophthalmology
  • Optometry
  • Pediatric Eye Care

Background:

  • Refractive errors are a significant global health concern in children.
  • Understanding refractive development is crucial for early intervention and myopia control.
  • Refraction difference value (RDV) and its variations offer insights into ocular development.

Purpose of the Study:

  • To investigate variations in total RDV (TRDV) and eccentric RDVs across different refractive error groups (hyperopia, emmetropia, myopia) in children and adolescents.
  • To analyze the correlation between RDV measurements and key refractive parameters like spherical equivalent (SE) and axial length (AL).
  • To explore the relationship between RDV and refractive development in pediatric populations.

Main Methods:

  • Comprehensive eye examinations were performed on 4-16 year olds with varying refractive statuses.
  • Measurements included SE refraction, AL, TRDV, and RDVs at different eccentricities and quadrants.
  • Statistical analyses utilized ANOVA, Pearson correlation, and paired t-tests to compare groups and assess relationships.

Main Results:

  • Significant differences in TRDV, RDV30°-45°, inferior RDV (RDV-I), and temporal RDV (RDV-T) were observed among refractive groups.
  • SE showed a negative correlation with TRDV, RDV30°-45°, RDV-I, and RDV-T.
  • AL positively correlated with most RDV measurements, except for RDV0°-15°, which showed a negative correlation.

Conclusions:

  • TRDV, RDV30°-45°, RDV-I, and RDV-T are potentially linked to refractive development in children.
  • A negative correlation between SE and RDV-I was noted in pre-myopic children.
  • RDV measurements provide valuable data for understanding refractive development and ocular growth.