Clinical Report: Evaluating the Relationship Between Axial Length to Corneal Curvature Radius Ratio and Myopia in Pediatric Populations
Overview
This study investigates the association between the axial length to corneal curvature radius ratio (AL/CR) and myopia in children aged 6 to 12 years. Findings indicate that AL/CR is a stronger predictor of myopia progression compared to axial length alone.
Background
Myopia prevalence, particularly among children, has become a significant public health issue, with rising rates observed globally. Understanding the biometric parameters that correlate with myopia can aid in early detection and intervention strategies. The AL/CR ratio has shown promise as a predictive tool for myopia, warranting further investigation in pediatric populations.
Data Highlights
Parameter
Value
Correlation coefficient (AL/CR vs. SE)
-0.865
Correlation coefficient (AL vs. SE)
-0.747
Area under ROC curve (AL/CR)
0.938
Area under ROC curve (AL)
0.87
AL/CR cutoff point
3.026
Sensitivity (AL/CR)
0.898
Specificity (AL/CR)
0.826
Key Findings
AL/CR increases with age in children aged 6 to 12 years.
Spherical equivalent decreases with age, indicating myopia progression.
The correlation between AL/CR and spherical equivalent is stronger than that of axial length and spherical equivalent.
AL/CR can independently reflect changes in spherical equivalent during myopia progression.
AL/CR has a higher diagnostic efficacy for myopia than axial length, with an area under the ROC curve of 0.938.
Clinical Implications
Clinicians should consider the AL/CR ratio as a valuable metric for assessing myopia risk in pediatric patients. Early identification of high-risk children can facilitate timely interventions to mitigate myopia progression.
Conclusion
The study underscores the importance of the AL/CR ratio in predicting myopia progression in children, suggesting it as a critical parameter for clinical assessment and management.
Narrative review linked lower vitamin D levels to greater myopia risk and higher omega-3 intake to lower risk, though outdoor exposure may explain the vitamin D association.
