Adjustable devices for corneal curvature adjustment

Details Adjustable devices for corneal curvature adjustment Adjustable devices for corneal curvature adjustment

1995-06-06

1997-12-02

Jones, Mary Beth

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

Eye prosthesis

Corneal implant

606166, 606167, 128898, A61M 3100

Patent

active

056930925

ABSTRACT:
The intrastromal corneal ring is adjustable in thickness and has an elongated, flexible, preferably transparent or translucent body which forms a circle. The intrastromal corneal ring 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 intrastromal corneal rings are disclosed each of which are adjustable in terms of their thickness. The thickness may be adjusted prior to the insertion of the intrastromal corneal ring into the cornea and may not be further adjustable after insertion. However, in accordance with preferred embodiments the intrastromal corneal ring 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: 4298004 (1981-11-01), Schachar et al.
patent: 4452235 (1984-06-01), Reynolds
patent: 4549529 (1985-10-01), White
patent: 4565198 (1986-01-01), Koeniger
patent: 4607617 (1986-08-01), Choyce
patent: 4646720 (1987-03-01), Peyman et al.
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: 4907587 (1990-03-01), Fedorov et al.
patent: 4941093 (1990-07-01), Marshall et al.
patent: 4961744 (1990-10-01), Kilmer et al.
patent: 5066301 (1991-11-01), Wiley
patent: 5090955 (1992-02-01), Simon
patent: 5188125 (1993-02-01), Kilmer et al.
patent: 5300118 (1994-04-01), Silvestrini et al.
patent: 5312424 (1994-05-01), Kilmer et al.
patent: 5372580 (1994-12-01), Simon et al.
patent: 5466260 (1995-11-01), Silvestrini et al.
Blavatskaia, D.E.D., "The use of intralamellar homoplasty in order to reduce refraction of the eye" Uberstzt. Aus. Oftalmol. Zh. (1966) 7:530-537 which was apparently translated to Arch. Soc. Ophthmol. Optom. (1988) 6:31-325.
English translation of Brazilian Patent Application No. BR 8705060 (Mar. 21, 1989).
Hartmann Chr., et al., "Intrastromale Implantation Eines Justierbaren Kunstsoffringes Zur Hornhautrefraktionsanderung", KongreB der Deutschen Gesellschaft fur Intraokularlinsen Implantation, delivered by H. Freyler et al., Springer-Verlag, Wien, pp. 465-475. The corresponding English language translation of the article namely, Hartmann, Chr., et al., Intrastromal implantation of an adjustable plastic ring to alter the corneal refraction Congress for German Society for Intraocular Lens Implantation, delivered by H. Freyler et al., (7 pages total).
Simon, G., et al., "Long term in vivo topographic studies of gel injection adjustable keratoplasty (GIAK)" Abstracts: The Association for Research in Vision and Ophthalmology, Annual Meeting Abstract Issue, Sarasota, Florida, USA, May 2-May 7, 1993, p. 1248, (abstract 2679-52).
Simon, G., et al., "Refractive remodeling of the cornea by intrastromal rings" Abstracts: Eighth International Congress of Eye Research, Proceedings of the International Society for Eye Research, San Francisco, California, USA, Sep. 4-8, 1988, vol. V, (abstract No. 47).
Simon, G. et al., "Refractive remodeling of the cornea by intrastromal rings" The Association for Research in Vision and Ophthalmology, Annual Spring Meeting, Sarasota, Florida, USA, Apr. 30-May 5, 1989, p. 187, (abstract 43).

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