Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods
A scleral prosthesis includes an elongated body configured to be implanted into scleral tissue of an eye. The body includes (i) opposing first and second free ends and (ii) multiple first portions that form the first end of the body and part of a remainder of the body between the ends. The first portions are separated along at least about half of a total length of the body by empty space such that the first portions meet at a point between the ends and are not connected to each other between that point and the first end. The ends are wider than the remainder. The scleral prosthesis also includes an insert configured to be placed between the first portions and to substantially fill the empty space. The body includes a convex upper surface extending lengthwise between the ends. The insert includes a convex upper surface extending lengthwise along the insert.
1. A scleral prosthesis comprising:
an elongated body configured to be implanted into scleral tissue of an eye, the elongated body comprising (i) opposing first and second free ends and (ii) multiple first portions that form the first end of the body and part of a remainder of the body between the first and second ends, the first portions of the body separated along at least about half of a total length of the elongated body by empty space such that the first portions meet at a point between the first and second ends of the body and are not connected to each other between that point and the first end of the body, the first and second ends wider than the remainder of the body; and
an insert configured to be placed between the first portions of the body and to substantially fill the empty space;
wherein the elongated body comprises a convex upper surface extending lengthwise between the first and second ends; and
wherein the insert comprises a convex upper surface extending lengthwise along the insert.
2. The scleral prosthesis of claim 1 , wherein the elongated body further comprises a concave bottom surface extending lengthwise between the first and second ends.
3. The scleral prosthesis of claim 2 , wherein the first and second ends have flattened bottom surfaces.
4. The scleral prosthesis of claim 1 , wherein the convex upper surface of the elongated body extends along substantially the total length of the elongated body.
5. The scleral prosthesis of claim 1 , wherein the convex upper surface of the insert transitions into a concave upper surface of the insert proximate to an end of the insert.
6. The scleral prosthesis of claim 1 , wherein the body further comprises multiple second portions that form the second end of the body and another part of the remainder of the body.
7. The scleral prosthesis of claim 6 , wherein the second portions of the body are separated along less than a quarter of the total length of the elongated body.
8. The scleral prosthesis of claim 1 , wherein:
the first portions of the body include a right first portion and a left first portion;
the right first portion includes a first ridge extending inwardly from the right first portion towards the left first portion;
the left first portion includes a second ridge extending inwardly from the left first portion towards the right first portion; and
the ridges are configured to engage with slots of the insert.
9. The scleral prosthesis of claim 1 , wherein the insert tapers from a first larger width to a smaller width and then expands to a second larger width.
10. The scleral prosthesis of claim 1 , wherein at least one of the body and the insert comprises at least one magnetic material.
11. A method comprising:
obtaining a scleral prosthesis having an elongated body configured to be implanted into scleral tissue of an eye, the elongated body comprising (i) opposing first and second free ends and (ii) multiple first portions that form the first end of the body and part of a remainder of the body between the first and second ends, the first portions of the body separated along at least about half of a total length of the elongated body by empty space such that the first portions meet at a point between the first and second ends of the body and are not connected to each other between that point and the first end of the body, the first and second ends wider than the remainder of the body; and
placing an insert between the first portions of the body, the insert configured to substantially fill the empty space;
wherein the elongated body comprises a convex upper surface extending lengthwise between the first and second ends; and
wherein the insert comprises a convex upper surface extending lengthwise along the insert.
12. The method of claim 11 , wherein the elongated body further comprises a concave bottom surface extending lengthwise between the first and second ends.
13. The method of claim 12 , wherein the first and second ends have flattened bottom surfaces.
14. The method of claim 11 , wherein the convex upper surface of the elongated body extends along substantially the total length of the elongated body.
15. The method of claim 11 , wherein the convex upper surface of the insert transitions into a concave upper surface of the insert proximate to an end of the insert.
16. The method of claim 11 , wherein the body further comprises multiple second portions that form the second end of the body and another part of the remainder of the body.
17. The method of claim 16 , wherein the second portions of the body are separated along less than a quarter of the total length of the body.
18. The method of claim 11 , wherein:
the first portions of the body include a right first portion and a left first portion;
the right first portion includes a first ridge extending inwardly from the right first portion towards the left first portion;
the left first portion includes a second ridge extending inwardly from the left first portion towards the right first portion; and
the ridges are configured to engage with slots of the insert.
19. The method of claim 11 , wherein the insert tapers from a first larger width to a smaller width and then expands to a second larger width.
20. A method comprising:
forming a scleral prosthesis having an elongated body configured to be implanted into scleral tissue of an eye, the elongated body comprising (i) opposing first and second free ends and (ii) multiple first portions that form the first end of the body and part of a remainder of the body between the first and second ends, the first portions of the body separated along at least about half of a total length of the elongated body by empty space such that the first portions meet at a point between the first and second ends of the body and are not connected to each other between that point and the first end of the body, the first and second ends wider than the remainder of the body; and
forming an insert configured to be placed between the first portions of the body and to substantially fill the empty space;
wherein the elongated body comprises a convex upper surface extending lengthwise between the first and second ends; and
wherein the insert comprises a convex upper surface extending lengthwise along the insert.