Method for controlled corneal ablation
Patent 5133708 Issued on July 28, 1992. Estimated Expiration Date: 
July 28, 2009. 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.
July 28, 2009. 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 ReferencesRotatable surgical instrument Apparatus and process for recurving the cornea of an eye Apparatus for performing ophthalmic laser surgery Patent #: 4729372 InventorApplicationNo. 368667 filed on 06/19/1989US Classes:606/5, Recurving or reshaping of the eye128/898, Methods606/16, With optical fiber606/17, With beam shaping or redirecting (e.g., lens)607/89Laser applicationExaminersPrimary: Shay, David M.Foreign Patent References
International ClassA61N 005/06AbstractA method for effecting controlled refractive correction of the cornea comprising a contact lens whose concave surface is wetted with an inert ultraviolet absorbent liquid. An excimer laser feeds a cylindrical bundle of quartz fibers terminating angularly in a decollimating matrix at the contact lens in such manner as to attenuate the ultraviolet flux in said liquid proportional to the depth thereof at the cornea so as to effect greatest corneal ablation at the thinnest depth of the liquid. | |
