Strain images of a simulated sclera with an inhomogeneous region. Row (a) and (b) are axial and lateral strains, respectively, for an inhomogeneous layer with decreasing thickness: (1) 500 μm, (2) 250 μm, (3) 150 μm, and (4) 50 μm; Row (c) and (d) are axial strains and lateral strains, respectively, for an inhomogeneous zone with decreasing width: (1) 2 mm, (2) 1 mm, (3) 400 μm, and (4) 200 μm.