surgical apparatus and instruments for use in ophthalmic surgery; surgical apparatus and instruments, namely ophthalmic implants; surgical apparatus and instruments for carrying out vitrectomy, namely vitreous cutters; surgical apparatus and instruments for phacoemulsification, namely phaco handles, phaco needles, sleeve sets; surgical apparatus and instruments, namely lasers, light fibers and light sources for medical purposes; surgical apparatus and instruments, namely diathermy forceps-and pins; surgical apparatus and instruments, namely viscous fluid injection and aspiration sets, air-fluid exchange sets, I/A handles; kits for vitrectomy comprising entry systems and cannulas