Patent ID: 6814755
Filing Date: 2004-11-09
Classification: A61F

Abstract:
A synthetic cornea for placing in a recess formed in the cornea of an eye, said recess opening out into the anterior face of the cornea and not into its posterior face so as to leave Descemet's membrane intact, said synthetic cornea comprising an optical portion consisting of a single piece made entirely of flexible transparent material having an axis of circular symmetry presenting an anterior face in the form of a sypherical cap of radius Ra and a posterior face in the form of a spherical cap of radius Rp, the two faces being spaced apart in central zones thereof by a distance â€œeâ€ , and a side wall substantially in the form of a truncated cone having its axis coinciding with the axis of symmetry and having its apex disposed in front of said anterior face in such a manner that truncated cone sections perpendicular to the axis of symmetry increase continously from a diameter D2 defining the anterior face to a diameter D1 defining the posterior face, the angle â€œaâ€  between the section of the side wall and the section of the posterior face in a section plane containing said axis of symmetry lying in the range 10Â° to 35Â°.