Intraocular lens system
A multi-component intraocular lens implanted in an optical system of a human eye includes one or more removable components, each component being foldable. One component acts as a base lens, including a flange with an aperture. Another component acts as a mid lens, including a tab which engages the aperture. A third component acts as a top lens, which engages the mid lens. Because the lens components are foldable, they may be inserted into the eye using an incision smaller than the diameter of the unfolded lens. The removable components may be used to correct various medical conditions of the eye, as well as to improve and enhance vision, and for cosmetic purposes.
1. A multi-component intraocular lens implantable in an optical system of a human eye, comprising:
a base lens having an anterior surface configured to face a front of the human eye, a posterior surface on an opposite side of the base lens relative to the anterior surface and configured to face a back of the human eye, a circumferential side surface connecting the anterior and posterior surfaces, and at least one projection extending away from the circumferential side surface and configured for securing the base lens within tissue of the human eye, the base lens being manufactured from a first foldable material and including at least one flange disposed on and extending orthogonally away from the anterior surface of the base lens toward the front of the human eye, the at least one flange including an aperture defined therein, the aperture being located only above the anterior surface of the base lens; and
an optical assembly which selectively engages the anterior surface of the base lens, the optical assembly being manufactured from a second foldable material.
2. The intraocular lens of claim 1 , wherein the foldable optical assembly comprises:
at least one tab extending therefrom, the tab configured to engage the aperture of the at least one flange of the base lens.
3. The intraocular lens of claim 2 , wherein the tab is surface treated selected from the group of: notched, slotted, grooved, ridged, roughened, ribbed, gouged, striated, rifled, sulcated, corrugated, crimped, or canaliculated.
4. The intraocular lens of claim 1 , wherein the foldable optical assembly comprises:
a top lens; and
a mid lens that removably engages the top lens.
5. The intraocular lens of claim 4 , wherein the mid lens comprises an L-shaped lip extending upward and away from a planar surface of the top lens, wherein a notch is defined by the lip and the planar surface.
6. The intraocular lens of claim 5 , wherein the top lens is secured in the mid lens by the lip.
7. The intraocular lens of claim 5 , wherein at least one side of the lip is beveled.
8. The intraocular lens of claim 7 , wherein the notch engages at least an outer perimeter of the top lens.
9. The intraocular lens of claim 4 , wherein at least one tab extends from the mid lens, the at least one tab configured to engage the aperture defined in at least one flange extending from the base lens.
10. The intraocular lens of claim 4 , wherein the top or mid lens is constructed with a predetermined cylinder and diopter value for correcting astigmatism.
11. The intraocular lens of claim 4 , wherein the top or mid lens includes a coating capable of blocking or absorbing a specific light wavelength or range of wavelengths.
12. The intraocular lens of claim 4 , wherein the top or mid lens is configured to deliver a pharmaceutical compound into an inner portion of the human eye.
13. The intraocular lens of claim 4 , wherein the top or mid lens is provided with a coating which enhances the human eye's ability to see particular area of a light spectrum.
14. The intraocular lens of claim 4 , wherein the top lens is provided with a coating which enhances the human eye's ability to see at night.
15. The intraocular lens of claim 4 , wherein at least one of the mid lens and the top lens has at least one vision corrective component.
16. The intraocular lens of claim 1 , wherein the aperture has a shape selected from the group of: an ellipse, an oval, a trapezoid, a rounded rectangle, a parallelogram, a pentagon, hexagon, and an octagon.
17. The intraocular lens of claim 1 , wherein the base lens has at least one vision corrective component.
18. The intraocular lens of claim 1 , wherein the first foldable material is the same as the second foldable material.
19. The intraocular lens of claim 1 , wherein the first foldable material is different from the second foldable material.
20. The intraocular lens of claim 1 , wherein the base lens includes a removable optic portion defined by at least one breakable attachment point.
21. The intraocular lens of claim 20 , wherein the base lens further includes an annular housing joined to the removable optic portion by the at least one breakable attachment point.
22. The intraocular lens of claim 21 , wherein a telescopic lens assembly is inserted through the annular housing and retained therein by the at least one flange of the base lens in place of the removable optic portion once the removable optic portion is removed by cutting the at least one breakable attachment point.