Modeling glycocalyx of the tear film as poroelastic layer

In this study we investigate a one-dimensional model for the evolution of the tear film subject to locally elevated evaporation at its anterior surface. We formulate a thin film model based on a combination of lubrication theory and mixture theory in order to understand the dynamics between the aqueous layer and the glycocalyx, which we treat as a poroelastic region. The model includes the physical effects of evaporation, surface tension, and viscosity.