Prosthetic cornea and method of implantation therefor

Details Prosthetic cornea and method of implantation therefor Prosthetic cornea and method of implantation therefor

1987-11-12

1989-06-27

Frinks, Ronald L.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Eye prosthesis

Corneal implant

128305, A61F 214

Patent

active

048425990

ABSTRACT:
The optical portion of a prosthetic cornea fabricated from a relatively inert, transparent, substantially rigid material is shaped to provide a correction factor consistent with the requirements of a selected patient. During implantation a receptacle for receiving the optical portion of the prosthetic cornea is formed by excising a portion of the living cornea. A stromal pocket is formed into the posterior one-third of the stroma of the living cornea receiver and an attachment portion of the prosthetic cornea is secured within the stromal pocket. The attachment portion extends outwardly from the optical portion, and apertures through the attachment portion serve to promote the transfer of nutrients and other fluids and gases as well as allowing normal fibrous tissue growth which aids in anchoring the prosthetic cornea in place over the long term. The apertures may optionally also be employed to facilitate the use of sutures during the implantation process.

REFERENCES:
patent: 2714721 (1955-08-01), Stone, Jr.
patent: 3074407 (1963-01-01), Moon et al.
patent: 3562820 (1971-02-01), Braun
patent: 4589881 (1986-05-01), Pierschbacher et al.
patent: 4612012 (1986-09-01), White
patent: 4646720 (1987-03-01), Peyman et al.
patent: 4715858 (1987-12-01), Lindstrom
"Keratoprosthesis" Acrylic Optical Cylinder With Supporting Intralaminal Plate by Hernando Cardona, American Journal of Ophthalmology, vol. 54, No. 2, Aug. 1962, pp. 284-294.

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