Possibilities for biomechanical modelling of stress on individual anatomical structures of the eye using an improved mathematical model of the human eye.

Objective: The human eye is a complex optical system involving a variety of tissues, from connective to nervous. Implementation of individual layers and structures allows the biomechanical modelling of the istribution of tissue loading during selected loading events and can therefore be used to visualise changes in load and overload during injuries of selectable direction or intensity, as well as changes in the stability of the optical system following surgery or implantation of an artificial lens. Methods: The Abaquus program using finite element method (FEM) was used to create the model and simulate the loading. Additional structures relevant to the stability of the optical system of the eye under physiological conditions, in case of intraocular lens implantation and in case of blunt impact were implemented in the basic eye model. Results: A model of the eye was created that corresponds significantly better to its anatomical structure. The simulations demonstrated the loading of individual structures in various defined situations and described the risk of their mechanical failure in case of overloading, especially with regard to the time course of selected dynamic processes. Conclusion: We have verified the possibilities of biomechanical modelling of loaded anatomical structures in different situations. From a clinical point of view, this is important information that can be used not only in the diagnostic but also in the therapeutic process of various eye disorders, from changes due to simple ageing to post-operative changes or changes due to different types of trauma. [ABSTRACT FROM AUTHOR]