Smooth surface tunnel (SST-EZ) spheres have a smooth, porous anterior surface and suture tunnels to allow easy rectus muscle attachment without the use of an implant wrap. The redesigned suture holes and curved tunnels of the new Medpor SST-EZ may allow for easier insertion of ophthalmic needles typically used to attach the extra-ocular muscles to the implant. Both suture arms from one muscle are passed through each tunnel. Each muscle end can be drawn to within 3 mm of the implant anterior apex or allowed to hang back at the desired attachment location.
