Prosthetic capsular devices, systems, and methods
The present invention relates to a prosthetic capsular bag and method for inserting the same. The prosthetic capsular bag helps to maintain the volume of the natural capsular bag, thereby stabilizing the effective lens position of an IOL so that refractive outcomes may be improved with cataract surgery. The prosthetic capsular bag further provides an integrated refractive surface, providing a means for experimentally determining an effective lens position prior to inserting an IOL.
1. A prosthetic implant device for insertion into a natural capsular bag of an eye after removal of a cataract, the natural capsular bag having a volume prior to removal of the cataract, wherein the prosthetic implant device comprises:
an anterior side including an opening; and
a posterior side;
wherein the prosthetic implant device is configured to mechanically maintain substantially the volume of the natural capsular bag;
wherein the prosthetic implant device is configured to self-expand to maintain the volume of the natural capsular bag;
wherein the prosthetic implant device is adapted to contain one or more refractive surfaces; and
wherein at least one of the one or more refractive surfaces has an optical power between +30 diopter and −30 diopter.
2. The prosthetic implant device of claim 1 , wherein at least one of the one or more refractive surfaces has a non-zero diopter optical power.
3. The prosthetic implant device of claim 1 , wherein at least one of the one or more refractive surfaces includes at least one or more of the following characteristics: concave, convex, spherical, aspheric, wavefront, multifocal diffractive, multifocal refractive, multifocal zonal, accommodative, UV filtering, diffractive chromatic aberration reducing, and astigmatism correcting toric form.
4. The prosthetic implant device of claim 1 , wherein the posterior side comprises a refractive surface.
5. The prosthetic implant device of claim 1 , wherein a portion of the prosthetic implant device adapted to lie within the natural capsular bag is shaped such that an exterior contour of the prosthetic implant device conforms to a shape of the natural capsular bag and maintains the volume of said natural capsular bag.
6. The prosthetic implant device of claim 5 , wherein the exterior contour is adapted to mechanically maintain the prosthetic implant device at a specific position within the eye.
7. The prosthetic implant device of claim 1 , wherein the prosthetic implant device is a biological compatible, deformable prosthetic implant device.
8. The prosthetic implant device of claim 1 , wherein the prosthetic implant device is substantially discoid in shape.
9. The prosthetic implant device of claim 1 , wherein the prosthetic implant device is approximately the size, shape, and volume of a natural human lens.
10. The prosthetic implant device of claim 1 , wherein the prosthetic implant device establishes a three dimensional volume substantially similar to the volume of the natural capsular bag prior to removal of the cataract.
11. The prosthetic implant device of claim 1 , wherein the opening is configured to be open when the prosthetic implant device is placed in the eye.
12. The prosthetic implant device of claim 1 , wherein the prosthetic implant device comprises a prosthetic barrier separating an anterior segment and posterior segment of the eye.
13. The prosthetic implant device of claim 1 , wherein at least one of the one or more refractive surfaces are accommodative.
14. The prosthetic implant device of claim 1 , wherein the prosthetic implant device possesses sufficient elasticity to resume its pre-folded shape once positioned in the eye.
15. The prosthetic implant device of claim 1 , wherein the prosthetic implant device comprises at least one of the following materials: silicone, collamer, and acrylic.
16. The prosthetic implant device of claim 1 , wherein the prosthetic implant device is optically clear.
17. The prosthetic implant device of claim 1 , wherein the prosthetic implant device is foldable into a tubular shape.
18. The prosthetic implant device of claim 1 , further comprising a flange.
19. The prosthetic implant device of claim 1 , wherein dimensions of the prosthetic implant device match preoperative dimensions of the cataract in the eye.