Med Lasers.  2023 Dec;12(4):243-250. 10.25289/ML.23.035.

An improved machine learning model for calculation of intraocular lens power during cataract surgery in Republic of Korea: development

• Kang J
• Choi SY
• Oh S
• Cho KJ

• KMID: 2551161
• DOI: http://doi.org/10.25289/ML.23.035

Abstract

Background
To assess an improved machine learning model for calculation of intraocular lens (IOL) power during cataract surgery.
Methods
We reviewed 346 medical records of cataract surgery patients from the Dankook University Hospital and developed a machine regression model to calculate IOL power. Well-known machine learning algorithms such as random forest, gradient boosting machine, support vector machine (SVM), and eXtreme Gradient Boosting were tested to develop the best prediction model. The model accuracy was judged by comparing the difference between the predicted refractory powers and the actual postoperative refractory ones based on ±0.25, ±0.5, ±0.75, and ±1 D. The prediction error was also evaluated by statistical measures. The proposed model was compared with existing formulas, such as SRK/T, Barrett Universal II, Hill-RBF, and Kane.
Results
The proposed SVM model produced an accuracy of 43.3%, 77.2%, 87.0%, and 95.4% for refraction powers based on ±0.25, ±0.5, ±0.75, and ±1 D, respectively. In contrast, the Barrett Universal II formula produced an accuracy of 34.3%, 60.8%, 83.2%, and 93.0% for refraction powers.
Conclusion
The proposed machine learning prediction model showed better performance than the current formulas. This improved machine learning model using machine learning calculations could thus be used in IOL power calculations.

Keyword

Cataract; Lens; Machine learning