A finite element model of the eye matched with in vitro experiments for the prediction of traumatic retinal detachment

Autor: Duo Chen, Xiaona Sun, Yuan Wu, Min Tang, Jinghui Wang, Xiaofeng Qiao, Yuanjie Zhu, Zhiyang Zhang, Xin Du, Jieyi Guo, Yepu Chen, Linyuan Fan, Xiaoyu Liu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Theoretical and Applied Mechanics Letters, Vol 14, Iss 4, Pp 100539- (2024)
Druh dokumentu: article
ISSN: 2095-0349
DOI: 10.1016/j.taml.2024.100539
Popis: This study aimed to conduct finite element (FE) analysis matched with an in vitro experiment to analyze traumatic retinal detachments (TrRD) resulting from blunt trauma and provide stress and strain thresholds to predict the occurrence of TrRD. The in vitro experiment was performed on forty-eight porcine eyes using a pendulum device. We examined dynamic mechanical responses at four energy levels. A FE model, based on experimental results and published data, was used to simulate TrRD. Fifty-one additional eyes underwent immediate pathological examination following blunt impact. A dynamic variation of velocities was observed post-impact, displaying an approximate cosine oscillation-attenuation profile. Energy absorption increased as the initial energy and differed significantly at four energy levels (p
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