Synthetic intracorneal lines and method of manufacture
Patent 5123921 Issued on June 23, 1992. Estimated Expiration Date: 
March 27, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 27, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod of offsetting postoperative astigmatism with an intraocular lens Apparatus and method for improving eyesight Method of manufacture and implantation of corneal inlays Epicorneal lens Corneal onlay lens Intraocular prostheses Patent #: 4865601 InventorsAssigneeApplicationNo. 677595 filed on 03/27/1991US Classes:623/5.11, Corneal implant623/4.1EYE PROSTHESIS (E.G., LENS OR CORNEAL IMPLANT, OR ARTIFICIAL EYE, ETC.)ExaminersPrimary: Green, Randall L.Assistant: Willse, D. Attorney, Agent or FirmInternational ClassA61F 002/14AbstractA lens for implantation into the cornea of the eye for providing correction for myopia and myopia with accompanying astigmatism wherein a corneal cap section is removed and an implant bed is created to receive the intracorneal lens. The intracorneal lens is formed of a hydrogel type material or other material highly compatible with corneal physiology. In the range of lens powers of approximately -1.0 diopters to -30.0 diopters, the posterior radius of curvature conforms to the receiving surface of the lamellar bed of the cornea and the anterior surface has the radius of curvature necessary to provide the desired lens power for achieving the desired change in the refractive power of the cornea. The lens includes a peripheral transitional zone to join the anterior surface and posterior surface to allow the lens to be implanted onto the corneal bed and to allow for a smooth overlay of the replaced corneal cap section.Other References
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