Ocular prosthesis and fabrication method of same
OwnerTimothy P. Frielinventor
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Abstract
An ocular prosthesis includes a posterior sclera portion partially nested with an anterior clear portion. An iris disk piece and/or a retinal chip may also be disposed between the posterior and anterior portions. A method for manufacturing the ocular prosthesis includes scanning an impression of an eye socket or an existing ocular prosthesis, fabricating posterior and anterior portions from geometrical models generated from the scans, and forming the ocular prosthesis by joining the two portions. In another embodiment of the method, a photograph of an iris is provided and manipulated to form a multi disk iris piece to be used in the ocular prosthesis.
Claims22
A method of manufacturing an ocular prosthesis comprising a posterior sclera portion and an anterior clear portion, the method comprising:
- providing an impression of an eye socket or an existing ocular prosthesis;
- scanning the impression or the existing ocular prosthesis to obtain scan data;
- generating a geometrical ocular prosthesis modeling object based on the scan data;
- transforming the geometrical ocular prosthesis modeling object to form a posterior modeling object and an anterior modeling object;
- modifying the posterior modeling object to include an iris table depression for insertion of an iris piece composed of a plurality of layers, the iris table depression including a base surface and a side surface extending from an outer edge of the base surface, at an angle at least substantially perpendicular to the base surface, and continuing to an outer surface of the posterior modeling object, wherein the iris table depression has substantially a same depth as a thickness of the iris piece such that a top surface of the iris piece is formed along a same plane as an edge of the outer surface of the posterior modeling object that is adjacent the iris table depression, wherein each layer of the iris piece is provided adjacent the side surface of the iris table depression such that an entire side surface of each layer is provided substantially a same distance from the side surface of the iris table depression;
- modifying the anterior modeling object to include a substantially level surface;
- fabricating the posterior scleral portion based on the modified posterior modeling object;
- fabricating the anterior clear portion based on the modified anterior modeling object;
- and
- forming the ocular prosthesis after fabrication of the posterior and anterior portions by joining the fabricated posterior sclera portion to the fabricated anterior clear portion.
Dependencies are inferred from the claim text.