AI Article Synopsis
- This study compares two methods of calculating intraocular lens (IOL) power for three types of presbyopia-correcting lenses, specifically the Barrett TK Universal II and Barrett Universal II TCRP.
- It involved 64 patients who had their eye measurements taken using two different devices, the IOLMaster 700 and Pentacam HR, to assess the accuracy of their readings.
- Results indicated small but significant differences in eye measurements and recommended IOL powers from the two calculation methods, showing that the Barrett TK Universal II is just as effective as the TCRP-based version and highlights the need for measurement consistency across devices.
Article Abstract
Purpose: To compare Barrett TK Universal II and Barrett Universal II TCRP calculations in the power calculations for 3 presbyopia-correcting intraocular lenses (PC-IOL).
Methods: This observational study involved 64 eyes from 64 patients who prepared to undergo extraction of crystalline lenses combined with PC-IOL (Symfony ZXR00, PanOptix TFNT00, or AT LISA tri 839MP) implantation. All eyes underwent ocular biometric measurements with IOLMaster 700 and Pentacam HR, and the interdevice agreement of measurements including total keratometry (TK, IOLMaster 700) and total corneal refractive power (TCRP, Pentacam HR) was evaluated. IOL power calculations were performed using TK-based Barrett TK Universal II and TCRP-based Barrett Universal II calculations, respectively.
Results: Paired -tests showed that the differences in white-to-white diameter, central corneal thickness, anterior chamber depth, and mean TK between IOLMaster 700 and Pentacam HR were slight but significant (all P<0.05), and the differences in recommended IOL power for emmetropia between two Barrett calculations were also significant in 3 PC-IOLs (all P<0.05). The ROC curve showed that the AUC was 0.917 (95% CI, 0.820-0.971) for the absolute value of the difference between TK and TCRP in discriminating the difference of ≥ ±0.5 D in predicted IOL power with best cutoff values of 0.4 D.
Conclusion: The novel Barrett TK Universal II formula built in IOLMaster 700 is comparable to TCRP-based Barrett Universal II calculation for IOL power calculation of PC-IOLs, and the convenience of using the Barrett TK Universal II formula should be founded on measurement consistency between devices.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11137930 | PMC |
| http://dx.doi.org/10.2147/OPTH.S461195 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
GP emigration from Ireland: an analysis of data from key destination countries.
BMC Health Serv Res
December 2024
RCSI University of Medicine and Health Sciences, Dublin, Ireland.
Background: Ireland is experiencing a general practitioner (GP) workforce crisis, facing an ageing workforce, a growing population with increased life expectancy, and increased complexity of patients. The GP crisis threatens access to primary care in Ireland, as well as Ireland's aim to transform into a primary-care centred system of universal healthcare via the proposed "Sláintecare" healthcare reforms. The challenges faced are common to many countries as health systems seek to expand their medical workforce post-pandemic.
View Article and Find Full Text PDFEvaluation of prediction errors in nine intraocular lens calculation formulas using an explainable machine learning model.
BMC Ophthalmol
December 2024
Department of Ophthalmology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
Background: The purpose of the study was to evaluate the relationship between prediction errors (PEs) and ocular biometric variables in cataract surgery using nine intraocular lens (IOL) formulas with an explainable machine learning model.
Methods: We retrospectively analyzed the medical records of consecutive patients who underwent standard cataract surgery with a Tecnis 1-piece IOL (ZCB00) at a single center. We calculated predicted refraction using the following IOL formulas: Barrett Universal II (BUII), Cooke K6, EVO V2.
Evaluation of an artificial intelligence-based intraocular lens calculator: AI-based IOL-optimized formula.
J Cataract Refract Surg
December 2024
Cullen Eye Institute, Department of Ophthalmology, Baylor College of Medicine, Houston, TX.
Purpose: To evaluate the ZEISS AI IOL Calculator (ZEISS AI) and compare its accuracy in refractive prediction to the Barrett Universal II (BUII) and Kane formulas.
Setting: Cullen Eye Institute, Baylor College of Medicine, Houston, TX.
Design: Retrospective case series.
Improving the Accuracy of Lens Formulas for in-the-bag Intraocular Lens Implantation in Marfan Syndrome Patients with Ectopia Lentis.
J Cataract Refract Surg
December 2024
Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai 200031, China.
Purpose: To improve the accuracy of intraocular lens (IOL) power calculation formulas by modifying the effective lens position (ELP) equations for patients with Marfan Syndrome (MFS) and ectopia lentis (EL) undergoing in-the-bag IOL implantation.
Setting: Eye and ENT Hospital of Fudan University.
Design: Retrospective cohort study.
Accuracy of new intraocular lens calculation formulas in primary angle closure glaucoma patients who underwent phacoemulsification combined with goniosynechialysis.
Int Ophthalmol
December 2024
Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Dong Xia Road, Shantou, Guangdong Province, People's Republic of China.
Purpose: This study aims to evaluate the accuracy of intraocular lens (IOL) power calculation formulas-including Kane, Emmetropia Verifying Optical (EVO) 2.0, SRK/T, Hoffer Q, Haigis standard, Haigis optimized, Holladay 1, Olsen, Barrett Universal II-in primary angle-closure glaucoma (PACG) eyes undergoing cataract surgery combined with goniosynechialysis (GSL).
Methods: Preoperative biometric data were obtained using the OA-2000.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!