together during implantation but prevents portions 506 a 506 b from coming together after implantation reducing the likelihood that the prosthesis 500 can exit the scleral tunnel fig6 a through 6g illustrate a sixth example scleral prosthesis 600 in accordance with this disclosure the embodiment of the scleral prosthesis 600 shown in fig6 a through 6g is for illustration only other embodiments of the scleral prosthesis 600 could be used without departing from the scope of this disclosure as shown in fig6 a the scleral prosthesis 600 has two opposing ends 602 604 in this example again only one end 604 of the prosthesis 600 is split or divided into multiple portions 606 a 606 b although both ends could be divided as shown in fig6 b the prosthesis 600 generally has a more rectangular cross section where the bottom surfaces of the ends 602 604 are flatter than in the prosthesis 500 as shown here portions 608 610 of the ends 602 604 of the prosthesis 600 are hook shaped and the prosthesis 600 includes ridges 612 along the inner sides of the portions 606 a 606 b the ridges 612 generally travel lengthwise along the portions 606 a 606 b of the.