Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Eye prosthesis – Corneal implant
Patent
1992-09-21
1994-04-05
Green, Randall L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Eye prosthesis
Corneal implant
606166, A61M 3100
Patent
active
053001184
ABSTRACT:
The intrastromal corneal ring (ICR) is adjustable in thickness and has an elongated, flexible, preferably transparent or translucent body which forms a circle. The ICR is of a size such that it can be inserted into a human eye and is comprised of a material which is compatible with human ocular tissue. The thickness of the ring can be adjusted so that it is not necessary to stock a plurality of different rings of different sizes to be used in connection with a method of adjusting the shape of the cornea of the eye. A plurality of different embodiments of ICRs are disclosed each of which are adjustable in terms of their thickness. The thickness may be adjusted prior to the insertion of the ICR into the cornea and may not be further adjustable after insertion. However, in accordance with preferred embodiments the ICR is inserted at a thickness which is believed to be proper and may thereafter be further adjusted in order to precisely define the desired thickness and thereby more precisely adjust the shape of the cornea and focus the light entering the eye on the retina.
REFERENCES:
patent: 4452235 (1984-06-01), Reynolds
patent: 4671276 (1987-06-01), Reynolds
patent: 4688570 (1987-08-01), Kramer et al.
patent: 4766895 (1988-08-01), Reynolds
patent: 4782820 (1988-11-01), Woods
patent: 4815463 (1989-03-01), Hanna
patent: 4901744 (1990-10-01), Kilmer et al.
patent: 4941093 (1990-07-01), Marshall et al.
patent: 5066301 (1991-11-01), Wiley
patent: 5090955 (1992-02-01), Simon
patent: 5188125 (1993-02-01), Kilmer et al.
Loomas Bryan
Mathis Mark
Silvestrini Thomas
Green Randall L.
Jones Mary Beth
Keravision
LandOfFree
Adjustable devices for corneal curvature adjustment does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adjustable devices for corneal curvature adjustment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable devices for corneal curvature adjustment will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-508591