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Predictive Accuracy of the Hill-RBF 2.0 Formula in Pediatric Eyes: Comparison of 5 Intraocular Lens Formulas
Insights
The Hill-Radial Basis Function (Hill-RBF) 2.0 formula shows comparable accuracy to other methods for predicting intraocular lens power in pediatric eyes. This artificial intelligence-based approach is non-inferior to established formulas, offering a promising alternative for pediatric cataract surgery outcomes.
Area of Science:
- Ophthalmology
- Biomedical Engineering
- Artificial Intelligence in Medicine
Background:
- Accurate intraocular lens (IOL) power prediction is crucial for successful pediatric cataract surgery.
- Existing IOL calculation formulas may have limitations in pediatric populations due to unique ocular characteristics.
- The Hill-Radial Basis Function (Hill-RBF) 2.0 formula, an AI-driven approach, offers a novel method for IOL power calculation.
Purpose of the Study:
- To evaluate and compare the predictive accuracy of the Hill-RBF 2.0 formula against established formulas (Barrett Universal II, Hoffer Q, SRK/T, Holladay 1) for IOL power calculation in pediatric eyes.
- To determine if the Hill-RBF 2.0 formula is non-inferior to other commonly used formulas in a pediatric cohort.
Main Methods:
- An observational study included 99 eyes of 70 children (4-18 years) with congenital or developmental cataracts.
- Optical biometry was performed using the Lenstar LS-900.
- Mean Absolute Prediction Error (MAE) and the percentage of eyes within specific residual refractive error targets (±0.50 D, ±0.50 to ±1.00 D, >±1.00 D) were calculated for Hill-RBF 2.0, Barrett Universal II, Hoffer Q, SRK/T, and Holladay 1 formulas at 8 weeks post-surgery.
Main Results:
- The Hill-RBF 2.0 formula demonstrated the lowest Mean Absolute Error (MAE) of 1.08 ± 1.00 D.
- The MAE for Hill-RBF 2.0 was significantly lower than for Holladay 1 and Hoffer Q formulas.
- No statistically significant difference in MAE was found between Hill-RBF 2.0 and the Barrett Universal II or SRK/T formulas.
- The Hill-RBF 2.0 group achieved the highest percentage of eyes with residual refractive error within ±0.50 D.
Conclusions:
- The Hill-RBF 2.0 formula, utilizing artificial intelligence and independent of specific anatomical features, is non-inferior to the Barrett Universal II, Hoffer Q, SRK/T, and Holladay 1 formulas in pediatric eyes.
- The findings suggest that the Hill-RBF 2.0 formula is a reliable option for IOL power prediction in pediatric cataract surgery.
- Further research may explore the long-term outcomes and broader applicability of AI-based IOL calculation formulas in pediatric ophthalmology.
Purpose:
To compare the predictive accuracy of the Hill-Radial Basis Function (Hill-RBF) 2.0 formula with the Barrett Universal II, Hoffer Q, SRK/T, and Holladay 1 formulas in pediatric eyes.
Methods:
In this observational study, 99 eyes of 70 children 4 to 18 years old with clinically significant congenital or developmental cataracts attending the pediatric ophthalmology clinic in Guru Nanak Eye Centre were included. Optical biometry was performed in all patients with the Lenstar LS-900 (Haag-Streit). Intraocular lens (IOL) power predicted by the Hill-RBF formula was selected. Mean absolute prediction error (MAE) at 8 weeks of follow-up was calculated for the Hill-RBF, Barrett Universal II, Hoffer Q, SRK/T, and Holladay 1 IOL power formulas. Percentages of eyes having residual refraction within ±0.50, ±0.50 to ±1.00, and greater than ±1.00 diopters (D) of target refraction were calculated.
Results:
The MAEs were 1.08 ± 1.00 D for the Hill-RBF, 1.24 ± 1.20 D for the Barrett Universal II, 1.25 ± 1.06 D for the Hoffer Q, 1.25 ± 1.10 D for the SRK/T, and 1.28 ± 1.01 D for the Holladay 1 formulas. The Hill-RBF formula had the lowest MAE, which was significantly lower than the Holladay 1 and Hoffer Q formulas. However, the difference in MAE between the Hill-RBF and the SRK/T and Barrett Universal II formulas was not statistically significant (P > .05). The Hill-RBF group had the maximum percentage of eyes with residual error within ±0.50 D of the target refraction.
Conclusions:
The overall evidence from the studies indicates that the Hill-RBF method that uses artificial intelligence and works independent of specific anatomical features is non-inferior to the Barrett Universal II, Hoffer Q, SRK/T, and Holladay 1 formulas in pediatric eyes. [.
