Evidence map›Paper›PMID 40681652›Full record

ArticleScientific reports2025

Accuracy comparison of six intraocular lens formulas using total and standard keratometry measurements with the iolmaster 700.

Shuang Ni, Jingwen Wang, Danni Lyu, Zhe Xu, Jing-Wei Xu, Sha Zhu, Yixuan Feng, Ce Shi, Wen Xu

Abstract readComparative Study
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Shuang Ni *Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, People's Republic of China.
Jingwen Wang *Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.
Danni LyuEye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, People's Republic of China.
Zhe XuEye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, People's Republic of China.
Jing-Wei XuEye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, People's Republic of China.
Sha ZhuEye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, People's Republic of China.
Yixuan FengEye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, People's Republic of China.
Ce ShiEye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, People's Republic of China.
Wen XuEye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, People's Republic of China. xuwen2003@zju.edu.cn.

Funding

Key Research and Development Program of Zhejiang Province 2023C03090National Natural Science Foundation of China 82271042Natural Science Foundation of Zhejiang Province LMS25H120001
6 · The paper itself

Abstract

This study aimed to evaluate the accuracy of six intraocular lens (IOL) calculation formulas using total keratometry (TK) and standard keratometry (K) measurements from the IOLMaster 700 in various ocular subgroups. A total of 212 eyes were analyzed. The mean absolute error (MAE), standard deviation (SD) of prediction error, and the median absolute error (MedAE) were calculated for each formula. and the prediction accuracy was compared across different subgroups categorized by axial length (AL), anterior chamber depth (ACD), lens thickness (LT), and other ocular parameters. Results showed that the Barrett Universal II (BU II) formula consistently had the lowest MAEs and MedAEs in the overall sample and most subgroups. The BU II formula performed particularly well in subgroups with thin LT when using TK mode and in medium LT subgroups using K mode. Comparison between TK and K modes showed no consistent superiority, with each mode outperforming the other in specific subgroups. The accuracy of the BU II formula was not influenced by ocular parameters, suggesting its robustness across different patient groups. In conclusion, the BU II formula demonstrated superior accuracy compared to other formulas, especially in specific subgroups, and its performance remained consistent regardless of ocular measurement variations.

Indexed as

BiometryLenses, IntraocularAdultAgedAged, 80 and overAnterior ChamberAxial Length, EyeCorneaFemaleHumansMaleMiddle AgedReproducibility of ResultsIntraocular lens (IOL)IOL formulaIOLMaster 700Standard keratometry (K)Total keratometry (TK)

Identifiers

PMID40681652
PMCPMC12274508

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.