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On the shell model for human eye in Glaucoma disease
International Journal of Engineering Science ( IF 6.6 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.ijengsci.2020.103414
Shahriar Dastjerdi , Bekir Akgöz , Ömer Civalek

A new mechanical and analytical models of the human eye is presented in order to study Glaucoma disease and its complications. Mechanical modeling of the human eye is performed with a hollow sphere under internal pressure. The first-order shear deformation theory is used to obtain the governing equations of the model, which are the set of partial differential equations. The nonlinear von Kármán assumption is considered for strain field to obtain the more precise results. The viscoelastic effects on the material structure of the eye are also considered to be more consistent with the results. The obtained governing equations and boundary conditions are solved using Semi-Analytical Polynomial Method. The results are studied for Glaucoma and the effects of this disease on the patient's vision as well as the temporary and permanent deformities caused in the patient's eyeball are further investigated. The modeling and information obtained from this study can help clinicians to provide more appropriate therapeutic strategies. Stress concentration can be identified in the eyeball tissue of patients suffering from Glaucoma using the simulations presented in this study. Given the generality of the proposed model, not only Glaucoma disease but also a wide range of eye diseases can be studied.



中文翻译:

青光眼疾病的人眼外壳模型

为了研究青光眼疾病及其并发症,提出了一种新的人眼机械和分析模型。人眼的机械建模是在内部压力下使用空心球体进行的。一阶剪切变形理论用于获得模型的控制方程,该方程是偏微分方程的集合。考虑应变场的非线性vonKármán假设以获得更精确的结果。对眼睛材料结构的粘弹性效应也被认为与结果更一致。使用半解析多项式方法求解获得的控制方程和边界条件。研究了青光眼的结果以及该疾病对患者的影响 进一步检查视力以及患者眼球中造成的暂时性和永久性畸形。从这项研究中获得的建模和信息可以帮助临床医生提供更合适的治疗策略。使用本研究提供的模拟结果可以确定青光眼患者眼球组织中的应力集中。鉴于所提出模型的普遍性,不仅可以研究青光眼疾病,还可以研究各种各样的眼科疾病。

更新日期:2020-11-02
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