Accommodating intraocular lens

1. A method of providing accommodation to an eye of a subject, the method comprising:

receiving, with an outer fluid reservoir of an accommodating intraocular lens placed within a lens capsule of the eye, a varying compressive force from the lens capsule;

urging fluid between an inner fluid chamber of the accommodating intraocular lens and a bellows region of the outer fluid reservoir in response to received varying compressive force, the bellows regions comprising a fold extending continuously circumferentially around an optical axis of the intraocular lens; and

changing one or more of a size or shape of the inner fluid chamber in response to the fluid urged into or out of the inner fluid chamber to change an optical power of the accommodating intraocular lens, wherein changing one or more of the size or shape of the inner fluid chamber comprises changing a separation distance between portions of first and second lens regions along the optical axis of the intraocular lens.

2. The method of claim 1 , wherein inner and outer bellows regions are in fluid communication with one another and the inner fluid chamber.

3. The method of claim 1 , wherein one or more of the bellows region is annular, elliptical, or rotationally symmetric in shape.

4. The method of claim 1 , wherein the fluid reservoir comprises a haptic structure to engage the lens capsule.

5. The method of claim 1 , wherein changing one or more of the size or shape of the inner fluid chamber comprises changing a radius of curvature of one or more of first or second lens regions which define the inner fluid chamber.

6. The method of claim 1 , wherein the accommodating intraocular lens comprises first and second lens regions which define the inner fluid chamber, and one or more of the first or second lens regions comprises a plano-convex member shaped to provide a minimum optical power to the accommodating intraocular lens.

7. The method of claim 1 , wherein the inner fluid chamber comprises a fluid therein and the inner fluid chamber provides a shape to the fluid such that the fluid provides the optical power to the accommodating intraocular lens.

8. The method of claim 1 , wherein increasing the varying compressive force urges fluid into the inner fluid chamber.

9. A method of providing accommodation to an eye of a subject, the method comprising:

receiving, with a series of circumferentially-distributed haptic structures of an accommodating intraocular lens implanted a lens capsule of the eye, a compressive force from the lens capsule;

receiving, with a bellows region of the accommodating intraocular lens, a compressive force from the series of circumferentially-distributed haptic structures;

moving fluid between the bellows region and an inner fluid chamber of the accommodating intraocular lens; and

changing an optical power of the accommodating intraocular lens in response to movement of fluid between the bellows region and the inner fluid chamber.

10. The method of claim 9 , wherein changing an optical power of the accommodating intraocular lens comprises modifying a distance between an anterior lens component of the inner fluid chamber and a posterior lens component of the inner fluid chamber along an optical axis of the inner fluid chamber.

11. The method of claim 9 , wherein changing an optical power of the accommodating intraocular lens comprises modifying a shape of the inner fluid chamber.

12. The method of claim 9 , wherein the series of circumferentially-distributed haptic structures comprise discrete paddles separated from each other along a perimeter of the accommodating intraocular lens.

13. The method of claim 9 , wherein changing an optical power of the accommodating intraocular lens comprises moving an anterior lens component of the inner fluid chamber away from a posterior lens component of the inner fluid chamber along an optical axis of the inner fluid chamber.

14. The method of claim 9 , wherein an anterior-most portion of the inner fluid chamber is positioned posterior to an anterior-most portion of the bellows region.

15. The method of claim 14 , wherein a poster-most portion of the inner fluid chamber is positioned anterior to a posterior-most portion of the bellows region.

16. The method of claim 9 , wherein the bellows region comprises an annular bellows chamber.

17. A method of providing accommodation to an eye of a subject, the method comprising:

receiving, with separate haptic structures of an accommodating intraocular lens implanted in the eye of the subject, a compressive force from a lens capsule of the eye of the subject;

receiving, with a fluid reservoir of the accommodating intraocular lens, a compressive force from the separate haptic structures;

moving fluid between the fluid reservoir and an inner fluid chamber positioned radially-inward from the fluid reservoir of the accommodating intraocular lens; and

changing an optical power of the accommodating intraocular lens in response to movement of fluid between the fluid reservoir and the inner fluid chamber.

18. The method of claim 17 , wherein changing an optical power of the accommodating intraocular lens comprises modifying a distance between an anterior lens component of the inner fluid chamber and a posterior lens component of the inner fluid chamber along an optical axis of the inner fluid chamber.

19. The method of claim 17 , wherein the series of circumferentially-distributed haptic structures comprise discrete paddles separated from each other along a perimeter of the accommodating intraocular lens.

20. The method of claim 17 , wherein the bellows region comprises an annular bellows chamber.