Evaluating the Relationship Between Axial Length to Corneal Curvature Radius Ratio and Myopia in Pediatric Populations - Summary - MDSpire

Evaluating the Relationship Between Axial Length to Corneal Curvature Radius Ratio and Myopia in Pediatric Populations

  • By

  • Lin Wang

  • Qianru Zhang

  • Changdong Liu

  • Qiqi Liu

  • Peipei Zhang

  • April 21, 2026

  • 0 min

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Objective:

To analyze the association of axial length to corneal curvature radius ratio (AL/CR) and other ocular biometric parameters with myopia in children and adolescents, specifically those aged 6 to 12 years.

Key Findings:
  • Axial length and AL/CR increased with age, while spherical equivalent decreased.
  • Corneal curvature radius did not change significantly with age.
  • The correlation coefficients between AL/CR and spherical equivalent were -0.865, and between axial length and spherical equivalent were -0.747.
  • AL/CR showed a stronger correlation with spherical equivalent than axial length.
  • The area under the receiver operating characteristic curve for AL/CR was 0.938, higher than axial length at 0.87.
  • A total of 2,760 eyes (right eye) of 2,760 children and adolescents were included.
Interpretation:

AL/CR can independently reflect dynamic changes in spherical equivalent during myopia progression, making it a valuable parameter for assessing myopia in children and highlighting its implications for early detection and intervention.

Limitations:
  • The study was conducted at a single center, which may limit generalizability and introduce potential biases.
  • The cross-sectional design does not allow for causal inferences.
Conclusion:

The study supports the use of AL/CR as a predictive tool for myopia in pediatric populations, highlighting its potential for early detection and intervention, while also emphasizing the need for further research to validate these findings.

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