  We study the motion of vitreous humour in a deforming eyeball. From the
mechanical and computational perspective this is a task to solve a
fluid-structure interaction problem between a complex viscoelastic fluid
(vitreour humour) and a nonlinear elastic solid (sclera and lens). We propose a
numerical methodology capable of handling the fluid-structure interaction
problem, and we demonstrate its applicability via solving the corresponding
governing equations in a realistic geometrical setting and for realistic
parameter values. It is shown that the choice of the rheological model for the
vitreous humour has a negligible influence on the overall flow pattern in the
domain of interest, whilst it is has a significant impact on the mechanical
stress distribution in the domain of interest.
