ZABBYS SPHERICAL IMPLANT BOX OF 50 Z-SPHERE Spherical implant is positioned within tenon’s capsule without attachment to the orbital tissue. During the version movements, the fornices of the enucleated socket retracts and lengthens on the side towards the direction of the gaze because contraction of the muscles and Tenon’s layer occur on that side The objectives of the spherical implants are as follows: It provides motility to the prosthesis It generally prevents cause of pressure necrosis Available Sizes: 12, 14, 16, 17, 18, 19, 20, 21, 22, 23 & 24mm.