109043 20230519145415.0 doi 10.1016/j.jmbbm.2021.104793 sideral 125156 ART-2021-125156 eng Cabeza-Gil, I. Universidad de Zaragoza (orcid)0000-0001-8219-2365 Experimental evaluation of the injection force exerted in intraocular lens delivery with syringe-type injectors 2021 Access copy available to the general public Unrestricted The process of intraocular lens (IOL) delivery within the capsular bag during cataract surgery is crucial, as the integrity of the IOL, the injector and the ocular structures should be preserved at all times. This study aims to obtain the main parameters that affect the injection force exerted in the ejection of an intraocular lens (IOL) through syringe-type injectors. For that purpose, ejection tests were carried out in vitro, measuring the resistance force throughout the entire delivery process. The effect of IOL material, haptic design, IOL thickest area and ophthalmic viscosurgical device (OVD) was studied by ejecting seven IOLs with four syringe-type injectors of different sizes, 3.0, 2.2 and 1.8 mm. In all injectors, plate hydrophilic IOLs present the lowest resistance forces; hydrated C-loop hydrophobic IOLs present higher forces and the C-loop hydrophobic IOL in dry conditions presents the highest resistance forces. All IOLs could be properly delivered with an injector size of 2.2 mm, making injector sizes of 3.0 mm outdated. The injector size of 1.8 mm damaged several IOLs. IOL material and cartridge nozzle size were the most influential parameters in IOL delivery. IOL thickest area was also relevant but in a lesser extent whereas IOL haptic design was not as relevant. info:eu-repo/grantAgreement/ES/DGA-FSE/T24-20R info:eu-repo/grantAgreement/ES/DGA-IIU/1408-2018 info:eu-repo/grantAgreement/ES/MCIU/DPI2017-84047-R info:eu-repo/grantAgreement/ES/MINECO/PRE2018-084021 info:eu-repo/grantAgreement/ES/UZ/ICTS NANBIOSIS-U13 Unit-CIBER-BBN info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 4.042 2021 ENGINEERING, BIOMEDICAL 48 / 98 = 0.49 2021 Q2 T2 MATERIALS SCIENCE, BIOMATERIALS 27 / 46 = 0.587 2021 Q3 T2 0.746 2021 Biomedical Engineering 2021 Q2 Biomaterials 2021 Q2 6.6 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Ríos-Ruiz, I. Universidad de Zaragoza (orcid)0000-0003-4128-2836 Calvo, B. Universidad de Zaragoza (orcid)0000-0001-9713-1813 5004 605 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Mec.Med.Cont. y Teor.Est. 124 (2021), 104793 [8 pp.] J. mech. behav. boomed. mater. Journal of the Mechanical Behavior of Biomedical Materials 1751-6161 2088666 http://zaguan.unizar.es/record/109043/files/texto_completo.pdf Versión publicada 2928555 http://zaguan.unizar.es/record/109043/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:109043 articulos driver 2023-05-18-13:58:51 ARTICLE