Surgical, medical and veterinary instruments and apparatus, namely, injection apparatus for intraocular lens implants, as well as cartridges and pistons for injection apparatus for intraocular lens implants; intraocular lens implants of artificial material; medical injection apparatus for ocular implants, as well as cartridges and pistons for injection apparatus for ocular implants; corneal implants and crystalline lens implants of artificial material; surgical irrigation and aspiration instr...