TY - JOUR
T1 - Spherical equivalent prediction analysis in intraocular lens power calculations using Eyetemis
T2 - A comprehensive approach
AU - Kan-Tor, Yoav
AU - Abulafia, Adi
AU - Zadok, David
AU - Kohnen, Thomas
AU - Savini, Giacomo
AU - Hoffer, Kenneth J.
AU - Benjamini, Yuval
N1 - Publisher Copyright:
© 2024 Published by Wolters Kluwer on behalf of ASCRS and ESCRS. Unauthorized reproduction of this article is prohibited.
PY - 2024/11/1
Y1 - 2024/11/1
N2 - Purpose:To compare 2 different datasets, using Eyetemis, an online analytical tool designed for assessing the spherical equivalent prediction errors (SEQ-PEs) of intraocular lens (IOL) power calculation formulas after cataract surgery.Setting:Institutional.Design:Retrospective case series.Methods:The study comprised 2 distinct datasets of patients who had undergone successful cataract surgery. Dataset 1 includes standard eyes, whereas Dataset 2 includes eyes with keratoconus. An online tool was used for SEQ-PE analysis across the 2 datasets, adhering to ISO standards for evaluating accuracy based on trueness and precision. The tool incorporates robust t tests for comparing the trimmed mean of the data, adjusting for heteroscedasticity. IOL constants in Dataset 1 were optimized for the comparison of Hoffer Q, Holladay 1, SRK/T, Haigis, and Barrett Universal II (BUII) formulas. In Dataset 2, IOL constants from the IOLCon website were used for the comparison of the BUII and its designated KCN version: Barrett TrueK Keratoconus (TrueK [KCN]).Results:For Dataset 1, the trimmed mean SEQ-PE values of all formulas were not significantly different from zero. BUII had superior precision and accuracy compared with all other formulas, except from Haigis (P ≤.04). For Dataset 2, BUII's trimmed-mean SEQ-PE was significantly different from zero (0.59 diopters [D], P <.01), unlike the TrueK (KCN) (0.12 D, P =.10). In addition, TrueK (KCN) exhibited enhanced precision and accuracy relative to BUII (P <.01).Conclusions:The online analysis tool provides a streamlined approach for assessing the prediction accuracy of SEQ refraction after cataract surgery, effectively evaluating trueness, precision, and overall accuracy through the use of advanced statistical methods.
AB - Purpose:To compare 2 different datasets, using Eyetemis, an online analytical tool designed for assessing the spherical equivalent prediction errors (SEQ-PEs) of intraocular lens (IOL) power calculation formulas after cataract surgery.Setting:Institutional.Design:Retrospective case series.Methods:The study comprised 2 distinct datasets of patients who had undergone successful cataract surgery. Dataset 1 includes standard eyes, whereas Dataset 2 includes eyes with keratoconus. An online tool was used for SEQ-PE analysis across the 2 datasets, adhering to ISO standards for evaluating accuracy based on trueness and precision. The tool incorporates robust t tests for comparing the trimmed mean of the data, adjusting for heteroscedasticity. IOL constants in Dataset 1 were optimized for the comparison of Hoffer Q, Holladay 1, SRK/T, Haigis, and Barrett Universal II (BUII) formulas. In Dataset 2, IOL constants from the IOLCon website were used for the comparison of the BUII and its designated KCN version: Barrett TrueK Keratoconus (TrueK [KCN]).Results:For Dataset 1, the trimmed mean SEQ-PE values of all formulas were not significantly different from zero. BUII had superior precision and accuracy compared with all other formulas, except from Haigis (P ≤.04). For Dataset 2, BUII's trimmed-mean SEQ-PE was significantly different from zero (0.59 diopters [D], P <.01), unlike the TrueK (KCN) (0.12 D, P =.10). In addition, TrueK (KCN) exhibited enhanced precision and accuracy relative to BUII (P <.01).Conclusions:The online analysis tool provides a streamlined approach for assessing the prediction accuracy of SEQ refraction after cataract surgery, effectively evaluating trueness, precision, and overall accuracy through the use of advanced statistical methods.
KW - Analysis
KW - Cataract Surgery
KW - Eyetemis
KW - Online tool
KW - SEQ-PE
UR - http://www.scopus.com/inward/record.url?scp=85200539772&partnerID=8YFLogxK
U2 - 10.1097/j.jcrs.0000000000001518
DO - 10.1097/j.jcrs.0000000000001518
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C2 - 38958959
AN - SCOPUS:85200539772
SN - 0886-3350
VL - 50
SP - 1128
EP - 1134
JO - Journal of Cataract and Refractive Surgery
JF - Journal of Cataract and Refractive Surgery
IS - 11
ER -