Computerized device for modeling a cornea for simulating tissue cuts in the cornea, comprising a processor programmed to load patient-specific corneal data, to generate a patient-specific finite element model of the cornea, in doing so to distribute a first group of tissue fibers with main fibers that extend parallel to the outer surface of the cornea in the finite element model in accordance with a first distribution function and to distribute a second group of tissue fibers with inclined cross-linked fibers that do not extend parallel to the outer surface of the cornea in the finite element model in accordance with a second distribution function, wherein the second distribution function distributes the cross-linked fibers with a non-uniform, decreasing depth distribution function (Φ C (s)) over the depth (s) of the cornea, from the outer surface of the cornea to the inner surface of the cornea, to calculate a solution to the finite element model in which the finite element model is in equilibrium with an intraocular pressure, to accept cut data that define a tissue cut in the cornea, to determine elements in the finite element model which are separated from one another by the tissue cut carried out according to the cut data, to calculate a solution to the finite element model that has been modified by the tissue cut according to the cut data, in which the modified finite element model is in equilibrium with the intraocular pressure, and to generate, on a display, a graphical representation of the corneal model that has been modified by the tissue cut on the basis of the modified finite element model that is in equilibrium with the intraocular pressure. to load patient-specific corneal data, to generate a patient-specific finite element model of the cornea, in doing so to distribute a first group of tissue fibers with main fibers that extend parallel to the outer surface of the cornea in the finite element model in accordance with a first distribution function and to distribute a second group of tissue fibers with inclined cross-linked fibers that do not extend parallel to the outer surface of the cornea in the finite element model in accordance with a second distribution function, wherein the second distribution function distributes the cross-linked fibers with a non-uniform, decreasing depth distribution function (Φ C (s)) over the depth (s) of the cornea, from the outer surface of the cornea to the inner surface of the cornea, to calculate a solution to the finite element model in which the finite element model is in equilibrium with an intraocular pressure, to accept cut data that define a tissue cut in the cornea, to determine elements in the finite element model which are separated from one another by the tissue cut carried out according to the cut data, to calculate a solution to the finite element model that has been modified by the tissue cut according to the cut data, in which the modified finite element model is in equilibrium with the intraocular pressure, and to generate, on a display, a graphical representation of the corneal model that has been modified by the tissue cut on the basis of the modified finite element model that is in equilibrium with the intraocular pressure.