Deformable intraocular multi-focus lens

A deformable intraocular corrective lens, comprising:

• a. an optical portion having a normal shape constructed of a material which is biologically compatible with the natural lens of the eye and for positioning anterior thereof, said optical portion having a predetermined maximum thickness of 0.25 mm under which the material may be rolled without exceeding the elastic limit of the material, said optical portion having a predetermined minimum thickness of 0.0125 mm above which the material retains said normal shape, whereby said deformable intraocular corrective lens is deformed for passage through a corneal incision having a length smaller than the diameter of the deformable intraocular corrective lens;
• b. said optical portion also having an anterior convex surface and a posterior surface, wherein said posterior surface comprises a central disk which is radially surrounded by a series of annular rings, said central disk and said series of annual rings forming a series of radial steps along said posterior surface;
• whereby said posterior surface and said anterior lenticular surface having a maximum separation of 0.1 mm, and the central disk being of a first substantially constant diopter power and at least one annular ring is of a second substantially constant diopter power;
• and
• c. and anchor anchoring said optical portion anteriorly to the natural lens of the eye.

A method of correcting a cause of impaired vision, comprising the steps of:

• a. making an incision for access to the anterior chamber of an eye having a length of about 4 mm or less;
• b. providing a corrective lens formed of polymethylmethacrylate material having a thickness of about 0.25 mm or less, having a diameter of 6 mm., said optical portion also having an anterior convex surface and a posterior surface, wherein said posterior surface comprises a central disk which is radially surrounded by a series of annular rings, said central disk and said series of annual rings forming a series of radial steps along said posterior surface;
• whereby said posterior surface and said anterior lenticular surface having a maximum separation of 0.1 mm, and the central disk being of a first diopter power and at least one annular ring is of a second diopter power
• c. integrally providing support haptics for anchoring the corrective lens;
• d. rolling the corrective lens and the support haptics without exceeding the elastic limit of the polymethylmethacrylate material into a rolled package;
• e. inserting the rolled package into the anterior chamber of the eye via the incision;
• f. unrolling the rolled package internally of the anterior chamber;
• g. anchoring the haptics anteriorly of the lens of the eye in the anterior chamber;
• h. repairing the incision made in the eye.