Patent ID: 6566627
Filing Date: 2003-05-20
Classification: A61F,B23K

Abstract:
A method for contouring the surface of a standard optical lens, said method comprising the steps of:(a) measuring the refractive error of a patient in need of a refractive correction; (b) providing the refractive function of said standard optical lens to a computer; (c) generating, using said computer, an electronic correction contour from a comparison of said refractive error relative to said refractive function; (d) transferring said electronic correction contour onto the surface of said lens by ablation etching with one or more laser pulses; (e) electronically measuring the refractive properties of said lens after each of said laser pulses; (f) comparing, by means of said computer, said refractive properties of said lens with said electronic correction contour; (g) terminating said ablation etching in localized areas wherein said refractive properties of said lens match said electronic correction contour.