Modular intraocular lens designs and methods

A method of implanting a modular intraocular lens (IOL) in a lens capsule of an eye, wherein the modular IOL includes a primary component releasably attached to a secondary component having an optical portion with a first optical correction, the method comprising:

• a. preparing the lens capsule for implantation of an IOL including forming a capsulorhexis;
• b. placing the primary component into the lens capsule, wherein the primary component has a body and one or more haptics, wherein the body is annular and defines a through opening having an inside perimeter, the body further including a continuous recess extending around an entirety of the inside perimeter, the continuous recess being defined by an anterior-facing posterior wall and a radially-inward-facing lateral wall, wherein the radially-inward-facing lateral wall includes diametrically spaced extensions extending anteriorly of and radially inward from the radially-inward-facing lateral wall;
• c. radially compressing the secondary component;
• and
• d. inserting the radially-compressed secondary component into the continuous recess of the primary component such that an entire posterior periphery of the secondary component contacts the anterior-facing posterior wall of the recess, and only the diametrically spaced extensions interlock with and extend over an anterior peripheral edge of the secondary component at discrete, diametrically spaced apart junctions so as to limit relative anterior and posterior movement between the primary and the secondary components;
• and wherein, in an implanted configuration, the IOL provides optical correction to the eye solely via the optical portion of the secondary component, an anterior surface of each of the diametrically spaced extensions is flush and even with an anterior surface of the optical portion of the secondary component, and the radially-inward-facing lateral wall of the continuous recess, except at the diametrically spaced extensions, is posterior to the anterior peripheral edge of the secondary component, such that the anterior peripheral edge is exposed between the diametrically spaced extensions;
• e. measuring an optical result with the primary and secondary components disposed in the lens capsule;
• and
• f. modifying the optical result by replacing the secondary component with a different secondary component.

A method of implanting a modular intraocular lens (IOL) in a lens capsule of an eye, wherein the modular IOL includes a base releasably attached to a lens, the method comprising:

• a. preparing the lens capsule for implantation of an IOL including forming a capsulorhexis;
• b. placing the base into the lens capsule, wherein the base has a body, a plurality of haptics extending from the body, a center opening extending in an anterior-posterior direction through the body to form a continuous annular ring having an inside perimeter, and a continuous recess extending around an entirety of the inside perimeter, the continuous recess being defined by an anterior-facing posterior wall and a radially-inward-facing lateral wall, wherein the radially-inward-facing lateral wall includes diametrically spaced extensions extending anteriorly of and radially inward from the radially-inward-facing lateral wall;
• c. radially compressing the lens;
• and
• d. inserting the radially-compressed lens into the continuous recess of the base such that an entire posterior periphery of the lens contacts the anterior-facing posterior wall of the recess, and only the diametrically spaced extensions interlock with and extend over an anterior side peripheral edge of the lens to form discrete, diametrically spaced apart junctions so as to limit relative anterior and posterior movement between the base and the lens, wherein, in an implanted configuration, the IOL provides optical correction to the eye solely via the lens, an anterior surface of each of the diametrically spaced extensions is flush and even with an anterior surface of the lens, the radially-inward-facing lateral wall of the continuous recess, except at the diametrically spaced extensions, is posterior to the anterior peripheral edge of the lens, such that the anterior peripheral edge is exposed between the diametrically spaced extensions, and the two diametrically spaced apart junctions reside radially within a perimeter of the capsulorhexis.