ABSTRACT
The eye consists of two spherical parts. The larger sphere, which contains the vitreous humor, is coated by three layers, namely from inside to outside, (a) the retina whose posterior part contains the visual apparatus, (b) the vascularized choroid continued by the iris, and (c) the protective opaque and vascularized sclera which is continued in the anterior part of the eye by the second smaller sphere, namely the cornea which is transparent. The internal part, termed nucleus pulposus, has properties which are clearly distinct from the external part, referred to as annulus fibrosus, which is a fibrous cartilage. In fact, it would be more appropriate to consider the elastic properties as displaying transversely isotropy about the radial direction, in view of the lamellar structure of the stroma. Quite generally, the fiber-reinforced lamellar structure of cornea and annulus fibrosus may introduce several interactions in the mechanical behavior.
