Investigating the Prediction Accuracy of Recently Updated Intraocular Lens Power Formulas with Artificial Intelligence for High Myopia

Omoto, Miki Kamikawatoko; Sugawara, Kaoruko; Torii, Hidemasa; Yotsukura, Erisa; Masui, Sachiko; Shigeno, Yuta; Nishi, Yasuyo; Negishi, Kazuno

doi:10.3390/jcm11164848

Cited by 14 publications

(11 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many previous studies have demonstrated that newgeneration IOL formulas such as the BU II, EVO 2.0, Kane, and RBF 3.0 formulas were more accurate in long eyes than were the traditional formulas, and two recent studies showed that the Hoffer QST formula was comparable in accuracy with the four abovementioned newer formulas. [4][5][6]8,9,22,23 Our results are consistent with those findings. However, few reports have focused on the accuracy of the K6 formula and formulas developed based on machine learning (Pearl-DGS and Nallasamy) when applied to long eyes.…”

Section: Discussionsupporting

confidence: 92%

“…1,2 Updates to optical biometry have greatly improved the measurement accuracy of ocular biological parameters, but for eyes with high myopia, accurate intraocular lens (IOL) formula calculations are still challenging and controversial. [3][4][5][6] Many previous studies had focused on axial length (AL) subgroups and found that hyperopic shift occurs in traditional and some new-generation IOL formulas when AL is >26 mm. 4,[7][8][9][10] Additional ocular factors, such as corneal curvature, anterior chamber depth (measured from the epithelium to the lens), and lens thickness, may also account for the commonly observed bias.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Efficacy of corneal curvature on the accuracy of 8 intraocular lens power calculation formulas in 302 highly myopic eyes

Mo,

Feng,

et al. 2023

J Cataract Refract Surg

View full text Add to dashboard Cite

Purpose: To investigate the effect of corneal curvature (K) on the accuracy of 8 IOL formulas in highly myopic eyes. Setting: Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, China. Design: Retrospective consecutive case series. Methods: 302 eyes (302 patients) were analyzed in subgroups based on the K value. The mean refractive error, mean absolute error (MAE), median absolute error (MedAE), root-mean-square absolute prediction error (RMSAE) and proportions of eyes within ±0.25 Diopter (D), ±0.50 D, ±0.75 D, ±1.00 D were statistical analyzed. Results: Emmetropia Verifying Optical (EVO) 2.0, Kane, and Radial Basis Function (RBF) 3.0 had the lower MAE (≤ 0.28) and RMSAE (≤ 0.348) and highest percentage of eyes within ±0.50 D (≥ 83.58%) in the flat (K ≤ 43D) and steep K (K > 45D) groups. Hoffer QST had the lowest MedAE (0.19), RMSAE (0.351) and the highest percentage of eyes within ±0.50 D (82.98%) in the normal K group (43 < K ≤ 45D). When AL ≤ 28 mm, all formulas showed close RMSAE values (0.322 to 0.373) in flat K group. When AL > 28 mm, RBF 3.0 achieved the lowest MAE (≤ 0.24), MedAE (≤ 0.17) and RMSAE (≤ 0.337) across all subgroups. Conclusions: EVO 2.0, Kane, and RBF 3.0 were the most accurate in highly myopic eyes with a flat or steep K. Hoffer QST is recommended for long eyes with normal K values. RBF 3.0 showed the highest accuracy when AL > 28 mm, independent of corneal curvature.

show abstract

Section: Discussionsupporting

confidence: 92%

mentioning

confidence: 99%

See 1 more Smart Citation

Efficacy of corneal curvature on the accuracy of 8 intraocular lens power calculation formulas in 302 highly myopic eyes

Mo,

Feng,

et al. 2023

J Cataract Refract Surg

View full text Add to dashboard Cite

show abstract

“…East Asia alone comprises more than half of the world's myopic population [2], with a growing trend [1][2][3][4]. In addition, the myopic tendencies observed in the present study were found to be not only restricted to ALs > 26 mm, on which this study focused, but also appeared in the medium-long AL range with lower magnitude (see Supplementary Fig.…”

Section: Discussionsupporting

confidence: 55%

Investigation of the Myopic Outcomes of the Newer Intraocular Lens Power Calculation Formulas in Korean Patients with Long Eyes

Kim,

Park,

2024

Preprint

View full text Add to dashboard Cite

This study investigated the underlying causes of the myopic outcomes of the optic-based newer formulas (Barrett Universal II, EVO 2.0, Kane, Hoffer-QST and PEARL-DGS) in long Korean eyes with Alcon TFNT intraocular lens (IOL) implantation. Postoperative data from 3,100 randomly selected eyes of 3,100 patients were analyzed to compare the reference back-calculated effective lens positions (ELPs) based on the Haigis formula using conventional axial length (AL) and Cooke-modified AL (CMAL) with the predicted ELP of each single- and triple-optimized Haigis formula applied to AL- and CMAL. Contrary to the AL-applied Haigis formula, the predicted ELP curve of the CMAL-applied, single-optimized Haigis formula, simulating the methods of the newer formulas, exhibited a significant upward deviation from the back-calculated ELP in long eyes. The relationship between the AL and anterior chamber depth in our long-eyed population differed from that in the base population of the PEARL-DGS formula. The myopic outcomes in long eyes appeared to stem from the substantial overestimation of the postoperative IOL position with AL modification, leading to the implantation of inappropriately higher-powered IOLs. This discrepancy may be attributed to the ethnic differences in ocular biometrics, particularly the relatively smaller anterior segment in East Asian patients with long AL.

show abstract

“…At present, the emergence of arti cial intelligence (AI) calculation formulas based on big data has led to the development of all kinds of formulas, including the Kane, Emmetropia Verifying Optical 2.0 (EVO) and Pearl-DGS formulas [15][16][17] . The most important feature of this type of formula is its self-learning ability, and it is expected to make a breakthrough in the eld of accurate computing after refractive surgery.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the accuracy of 9 intraocular lens power calculation formulas after SMILE in Chinese myopic eyes

Li,

Yuan,

Yang

et al. 2023

Preprint

View full text Add to dashboard Cite

As of 2021, over 2.8 million cases of small incision lenticule extraction (SMILE) procedures had been performed in China. However, there remains limited knowledge regarding the selection of intraocular lens (IOL) power calculation formulas for post-SMILE cataract patients. This study included 52 eyes of 26 myopic patients from northern China who underwent SMILE at Tianjin Eye Hospital from September 2022 to February 2023 and was designed to investigate the performance of multiple IOL calculation formulas in post-SMILE patients using a theoretical surgical model. We compared the postoperative results obtained from three artificial intelligence (AI)-based formulas and six conventional formulas provided by the American Society of Cataract and Refractive Surgery (ASCRS). These formulas were applied to calculate IOL power using both total keratometry (TK) and keratometry (K) values, and the results were compared to the preoperative results obtained from the Barrett Universal II (BUII) formula in SMILE cases. Among the evaluated formulas, the results obtained from Emmetropia Verifying Optical 2.0 Formula with TK (EVO-TK) (0.40 ± 0.29 D, range 0 to 1.23 D), Barrett True K with K (BTK-K, 0.41 ± 0.26 D, range 0.01 to 1.19 D), and Masket with K (Masket-K, 0.44 ± 0.33 D, range 0.02 to 1.39 D) demonstrated the closest proximity to BUII. Notably, the highest proportion of prediction errors within 0.5 D was observed with BTK-K (71.15%), EVO-TK (69.23%), and Masket-K (67.31%), with BTK-K showing a significantly higher proportion compared to Masket-K (p < 0.001). Our research indicates that in post-SMILE patients, EVO-TK, BTK-K, and Masket-K may yield more accurate calculation results. At the current stage, AI-based formulas do not demonstrate significant advantages over conventional formulas. However, the application of historical data can enhance the performance of these formulas.

show abstract

Investigating the Prediction Accuracy of Recently Updated Intraocular Lens Power Formulas with Artificial Intelligence for High Myopia

Cited by 14 publications

References 22 publications

Efficacy of corneal curvature on the accuracy of 8 intraocular lens power calculation formulas in 302 highly myopic eyes

Efficacy of corneal curvature on the accuracy of 8 intraocular lens power calculation formulas in 302 highly myopic eyes

Investigation of the Myopic Outcomes of the Newer Intraocular Lens Power Calculation Formulas in Korean Patients with Long Eyes

Comparison of the accuracy of 9 intraocular lens power calculation formulas after SMILE in Chinese myopic eyes

Contact Info

Product

Resources

About