Comparison Of The Accuracy Of Web-Based Escrs Iol Power Calculator
Published 2024 - 42nd Congress of the ESCRS
Reference: PO460 | Type: Free paper | DOI: 10.82333/p1kq-r252
Authors: Soo Young Lee* 1 , Yoo Young Jeon 1 , Hayoung Lee 1 , Taehun Kim 1 , Kyu Sang Eah 1 , Yong-Ha Jo 1 , Ho Seok Chung 1 , Jae Yong Kim 1 , Hun Lee 1
1Ophthalmology,Asan Medical Center, University of Ulsan College of Medicine,Seoul,Korea, Republic Of
Purpose
To compare the accuracy of conventional and modern intraocular lens power calculation formulas (ESCRS IOL power calculator) using refractive prediction error in cataract surgery
Setting
Asan Medical Center, Seoul, South Korea
Methods
This retrospective cross-sectional study included 48 eyes from 48 patients who underwent routine phacoemulsification and PC IOL insertion. The study compared the refractive outcomes predicted by 4 formulas on the IOLmaster700(Barrett Universal II(BUII, SRK/T, Haigis, and Holladay 2) and 7 formulas on the web-based ESCRS IOL power calculator(BUII, Cooke K6, EVO 2.0, Hill-RBF 3.0, Hoffer QST, Kane, and Pearl-DGS). Preoperative and postoperative parameters, including UCVA, BCVA(logMAR), IOP, MR, AR, ARK, crystalline lens tilt, decenteration, and CCT were also measured and compared. The correlation between the prediction error calculated by each formula and the above-mentioned parameters was also analyzed using a linear regression model.
Results
The absolute prediction errors calculated by all formulas showed no significant difference (P=0.585 when compared by AR; P=0.361 by MR at 1 month post-op; P=0.207 by AR; P=0.261 by MR at 6 months post-op). The Kane, EVO 2.0, and Cooke K6 formulas showed a higher percentage of prediction errors within 0.25 diopters(D) or 0.50 D by AR at 6 months post-op (all p<0.001). The Kane formula showed the highest IOL Formula Performance Index, followed by EVO 2.0, BUII, Pearl-DGS, Cooke K6, Hoffer QST, and Hill-RBF 3.0 by AR at 6 months post-op, while the Cooke K6 formula showed the highest IOL FPI, followed by Pearl-DGS, EVO, Kane, BUII (ESCRS calculator), Hill-RBF 3.0, BUII (IOLmaster 700), SRK/T, and Holladay by MR at 6 months post-op.
Conclusions
When comparing the accuracy of conventional calculators from the IOLmaster 700 and web-based ESCRS IOL power calculators, all of the formulas have comparable prediction accuracy, while the Kane, EVO 2.0 and, Cooke K6 formulas tended to have a higher percentage of lower prediction errors within 0.25 D and 0.5 D.