Attachable optic prosthetic capsular devices
A prosthetic capsular device configured to be inserted in an eye includes a housing structure and a ring structure. The housing structure includes a first side, a second side opposite the first side, a third side, a fourth side opposite the third side, a posterior side including a refractive surface, an anterior side opposite the posterior side, and a longitudinal axis. The first side, the second side, the third side, the fourth side, the posterior side, and the anterior side at least partially define a cavity configured to contain an intraocular device (e.g., an IOL). The anterior side includes an opening. The ring structure includes a ring structure portion extending radially outward from proximate one of an end of the first side and an end of the second side.
1. A prosthetic capsular device configured to be inserted in a natural capsular bag of an eye after removal of a lens, the device comprising:
a housing structure capable of containing an intraocular lens (IOL), the housing structure comprising a first material and including:
a first lateral sidewall, the first lateral sidewall having a first length and including:
a first end, and
a second end;
a second lateral sidewall opposite the first lateral sidewall, the second lateral sidewall having a second length and including:
a first end, and
a second end;
a third arcuate lateral sidewall extending between the first end of the first lateral sidewall and the first end of the second lateral sidewall, the third arcuate lateral sidewall having a third length less than the first length and the second length, the third arcuate lateral sidewall comprising a capsular bag-contacting surface;
a fourth arcuate lateral sidewall extending between the second end of the first lateral sidewall and the second end of the second lateral sidewall, the fourth arcuate lateral sidewall opposite the third arcuate lateral sidewall, the fourth arcuate lateral sidewall having a fourth length less than the first length and the second length, the fourth arcuate lateral sidewall comprising a capsular bag-contacting surface;
a posterior sidewall including a first opening; and
an anterior sidewall opposite the posterior sidewall, the anterior sidewall including a second opening capable of allowing insertion of an intraocular lens,
the first lateral sidewall, the second lateral sidewall, the third arcuate lateral sidewall, the fourth arcuate lateral sidewall, the posterior sidewall, and the anterior sidewall at least partially defining a cavity, the cavity of the housing structure capable of containing an intraocular lens; and
a ring structure extending outward from the housing structure, the ring structure comprising a second material different than the first material, the ring structure comprising a first ring structure portion extending from the first end of the first lateral sidewall towards the second end of the first lateral sidewall, the ring structure further comprising a second ring structure portion extending from the first end of the second lateral sidewall towards the second end of the second lateral sidewall, each of the first and second ring structure portions comprises a capsular bag-contacting surface; and
a lens structure removably coupleable to the first opening of the posterior sidewall, the lens structure comprising a refractive surface usable as a reference point for selection of an intraocular lens for placement in the cavity of the housing structure.
2. The device of claim 1 , wherein the lens structure is configured to be coupled to the first opening of the posterior sidewall using a friction fit.
3. The device of claim 1 , wherein the lens structure is configured to be coupled to the first opening of the posterior sidewall using sutures.
4. The device of claim 1 , wherein the first material comprises silicone and the second material comprises polyimide.
5. The device of claim 1 , wherein the refractive surface has a refractive power between −35 D and +35 D.
6. The device of claim 1 , further comprising a plurality of tabs extending outwardly from the housing structure.
7. The device of claim 1 , wherein the refractive surface has a refractive power less than −35 D.
8. The device of claim 1 , wherein the refractive surface has a refractive power greater than +35 D.
9. The device of claim 1 , wherein the lens structure comprises a post having a lip.
10. The device of claim 9 , wherein the lip of the lens structure prevents uncoupling of the lens structure from the first opening of the posterior sidewall.
11. The device of claim 9 , wherein the lip of the lens structure comprises one or more threads.
12. The device of claim 9 , wherein the first opening of the posterior sidewall comprises one or more threads.
13. The device of claim 1 , wherein the lens structure is exchangeable.
14. The device of claim 1 , wherein the lens structure is multifocal.
15. The device of claim 1 , wherein the lens structure is toric.
16. The device of claim 1 , wherein the ring structure is configured to maintain a volume of the natural capsular bag.
17. The device of claim 1 , wherein the second material is sufficiently flexible for the ring structure to conform to a natural shape of the natural capsular bag.
18. The device of claim 1 , wherein the ring structure comprises a thickness between about 0.1 mm and about 0.15 mm.
19. The device of claim 1 , wherein the first sidewall and the second sidewall each comprises an interior lip configured to inhibit anterior movement of the IOL.
20. The device of claim 1 , wherein a maximum diameter of the device is between about 9 mm and about 11 mm.
21. The device of claim 1 , wherein the first opening is oblong or circular in shape.
22. The device of claim 1 , wherein the second opening is oblong or circular in shape.
23. The device of claim 1 , wherein the refractive surface comprises a diameter between about 4 mm and about 6 mm.
24. The device of claim 1 , wherein the refractive surface can be stretched between about 110% and about 600%.