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Rotation Characteristics of Three Toric Monofocal Intraocular Lenses

PURPOSE: To evaluate the rotational stability of the three monofocal toric intraocular lenses (IOLs) via data from an online toric IOL back-calculator. METHODS: A retrospective data review of an online toric IOL back-calculator, which allows users to input preoperative toric planning information, po...

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Autores principales: Kramer, Brent A, Hardten, David R, Berdahl, John P
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Dove 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7751684/
https://www.ncbi.nlm.nih.gov/pubmed/33364742
http://dx.doi.org/10.2147/OPTH.S285818
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author Kramer, Brent A
Hardten, David R
Berdahl, John P
author_facet Kramer, Brent A
Hardten, David R
Berdahl, John P
author_sort Kramer, Brent A
collection PubMed
description PURPOSE: To evaluate the rotational stability of the three monofocal toric intraocular lenses (IOLs) via data from an online toric IOL back-calculator. METHODS: A retrospective data review of an online toric IOL back-calculator, which allows users to input preoperative toric planning information, postoperative lens orientation, and subjective refraction. Inputted data were used to determine the optimal orientation of the toric IOL to minimize residual refractive astigmatism. Aggregate data from 3/11/2019 to 3/10/2020 were extracted and validated. Only data with ≥0.5D of residual refractive astigmatism were used in the study. Pre-operative intended IOL orientation and post-operative IOL orientation were used to calculate IOL rotation. RESULTS: After validation, 5397 entries were determined to represent patient eyes, of which 3238 represented the three monofocal IOLs evaluated. The rate of rotation for AcrySof, TECNIS, and enVista Toric IOLs was 72.7%, 83.4%, and 83.0%, respectively, and location only significantly impacted TECNIS IOLs. The magnitude of rotation for rotated IOLs was similar for all models and was significantly more for IOLs initially placed in the oblique axis. All IOL models tended to rotate in a counterclockwise direction (53.2%, 73.0%, 69.7%, respectively; p<0.05), and the tendency was greater for IOLs initially located horizontally. CONCLUSION: The AcrySof IQ Toric IOL was more rotationally stable than both the TECNIS and enVista Toric IOLs; there was no significant difference in rotational stability of the latter two.
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spelling pubmed-77516842020-12-22 Rotation Characteristics of Three Toric Monofocal Intraocular Lenses Kramer, Brent A Hardten, David R Berdahl, John P Clin Ophthalmol Original Research PURPOSE: To evaluate the rotational stability of the three monofocal toric intraocular lenses (IOLs) via data from an online toric IOL back-calculator. METHODS: A retrospective data review of an online toric IOL back-calculator, which allows users to input preoperative toric planning information, postoperative lens orientation, and subjective refraction. Inputted data were used to determine the optimal orientation of the toric IOL to minimize residual refractive astigmatism. Aggregate data from 3/11/2019 to 3/10/2020 were extracted and validated. Only data with ≥0.5D of residual refractive astigmatism were used in the study. Pre-operative intended IOL orientation and post-operative IOL orientation were used to calculate IOL rotation. RESULTS: After validation, 5397 entries were determined to represent patient eyes, of which 3238 represented the three monofocal IOLs evaluated. The rate of rotation for AcrySof, TECNIS, and enVista Toric IOLs was 72.7%, 83.4%, and 83.0%, respectively, and location only significantly impacted TECNIS IOLs. The magnitude of rotation for rotated IOLs was similar for all models and was significantly more for IOLs initially placed in the oblique axis. All IOL models tended to rotate in a counterclockwise direction (53.2%, 73.0%, 69.7%, respectively; p<0.05), and the tendency was greater for IOLs initially located horizontally. CONCLUSION: The AcrySof IQ Toric IOL was more rotationally stable than both the TECNIS and enVista Toric IOLs; there was no significant difference in rotational stability of the latter two. Dove 2020-12-16 /pmc/articles/PMC7751684/ /pubmed/33364742 http://dx.doi.org/10.2147/OPTH.S285818 Text en © 2020 Kramer et al. http://creativecommons.org/licenses/by-nc/3.0/ This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms (https://www.dovepress.com/terms.php).
spellingShingle Original Research
Kramer, Brent A
Hardten, David R
Berdahl, John P
Rotation Characteristics of Three Toric Monofocal Intraocular Lenses
title Rotation Characteristics of Three Toric Monofocal Intraocular Lenses
title_full Rotation Characteristics of Three Toric Monofocal Intraocular Lenses
title_fullStr Rotation Characteristics of Three Toric Monofocal Intraocular Lenses
title_full_unstemmed Rotation Characteristics of Three Toric Monofocal Intraocular Lenses
title_short Rotation Characteristics of Three Toric Monofocal Intraocular Lenses
title_sort rotation characteristics of three toric monofocal intraocular lenses
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7751684/
https://www.ncbi.nlm.nih.gov/pubmed/33364742
http://dx.doi.org/10.2147/OPTH.S285818
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