US 2003/0158560 A1 · Corrective intraocular lens system, intraocular lenses, and lens handling and installation devices for use therewith, and installation method

Abstract

A method is disclosed for modifying the optical characteristics of a intraocular lens implanted in a patient's eye, the primary intraocular lens having a primary optic with a narrow annular recess formed into an anterior surface generally parallel to the anterior surface and relatively adjacent the primary optic periphery, an entrance to the recess having an overhanging lip directed toward the primary optic optical axis. The method includes forming a thin, elastically deformable secondary optic having a diameter substantially equal to the diameter of the primary optic recess entrance, and having first and second tabs extending radially outward at generally opposite peripheral regions for inserting into the primary optic recess. A secondary optic manipulation hole is formed in each of the tabs and small first and second, spaced far apart ocular incisions are made in opposite regions of the patient's eye. After inserting the secondary optic into the patient's eye with the secondary optic posterior surface positioned on the primary optic anterior surface and with the first and second tabs in close proximity with corresponding ones of the first and second ocular incisions, a first installation instrument positions the secondary optic so that the first tab is adjacent a selected region of the primary optic recess, and a second instrument preferably holds the primary optic in a fixed position; the first instrument then positions the secondary optic so the first tab is inserted into the primary optic recess. The two instruments are then repositioned for inserting the second tab into the primary optic recess in the same manner. A secondary optic is disclosed as are the two installation instruments.

Claims30

Dependent claims

A method for modifying the optical characteristics of a intraocular lens implanted in a patient's eye, the primary intraocular lens having a primary optic with a narrow annular recess formed into an anterior surface generally parallel to said anterior surface and relatively adjacent to a periphery of said primary optic, an entrance to said annular recess having an overhanging lip directed toward an optical axis of said primary optic, said method comprising the steps of:

a. forming a thin, elastically deformable secondary optic having a diameter substantially equal to a primary optic diameter at said primary optic annular recess entrance, and having an insertion tab extending radially outward from a secondary optic peripheral edge, said tab being sized for fitting into said primary optic annular recess;
b. forming a manipulation hole in said tab;
c. making small, first and second, spaced far apart ocular incisions in said patient's eye;
d. inserting said secondary optic into said patient's eye with the secondary optic posterior surface positioned on said primary optic anterior surface, and with said tab in close proximity to one of said first and second ocular incisions;
e. forming a secondary-optic-to- primary-optic attachment instrument;
f. inserting said instrument through said first incision into said patient's eye until a instrument tip thereof engages the manipulation hole in said tab;
g. positioning the secondary optic by said instrument tip until said tab is adjacent a selected region of said primary optic annular recess;
h. positioning the secondary optic by said instrument tip so said tab is inserted into said primary optic annular recess.

5 more elements

A method for modifying the optical characteristics of a intraocular lens implanted in a patient's eye, the primary intraocular lens with a primary optic, said primary optic having a narrow annular recess formed into an anterior surface generally parallel to said anterior surface relatively adjacent to a peripheral edge of said primary optic, an entrance to said recess having an overhanging lip directed toward an optical axis of said primary optic, said method comprising the steps of:

a. forming a thin, elastically deformable secondary optic having a diameter substantially equal to a primary optic diameter at said primary optic recess entrance, and having first and second insertion tabs extending radially outward at generally opposite peripheral edge regions, said tabs being sized for fitting into said primary optic recess;
b. forming a manipulation hole in each of said secondary optic first and second tabs;
c. making small, first and second, spaced far apart ocular incisions in opposite regions of said patient's eye;
d. inserting said secondary optic into said patient's eye with the secondary optic posterior surface positioned on said primary optic anterior surface, and with said first and second tabs in close proximity with corresponding ones of said first and second ocular incisions;
e. forming first and second secondary-optic-to-primary-optic attachment instruments;
f. inserting said first instrument through said first incision into said patient's eye until an instrument tip thereof engages the manipulation hole in said first tab;
g. positioning the secondary optic by said first instrument tip until said first tab is adjacent a selected region of said primary optic annular recess;
h. inserting said second instrument through said second ocular incision into said patient's eye so that an instrument tip thereof engages said primary optic peripheral edge adjacent said first tab for maintaining the primary optic in a fixed position;
and
i. positioning the secondary optic by the first instrument tip so the first tab is inserted into said primary optic annular recess.

7 more elements

Dependencies are inferred from the claim text.

Corrective intraocular lens system, intraocular lenses, and lens handling and installation devices for use therewith, and installation method

Life of this patent

Corrective intraocular lens system, intraocular lenses, and lens handling and installation devices for use therewith, and installation method

Life of this patent

Abstract

Claims30