An intraocular foreign body (IOFB) must be excluded in all cases of eye perforation. An IOFB may traumatize the eye mechanically, introduce infection or cause other toxic effects (i.e.: siderosis) on the intraocular structures. Once in the eye, the foreign body may lodge in any of the structures (in the antherior chamber, in the angle, in the lens, in the vitreous or on the retina).Some of them are inert but an intraocular ferrous foreign body exerts a toxic effect in the eye and siderosis. These IOFBs must be removed as soon as possible, ideally at the time of primary repair of the entry site wound. We present one case of a piece of steel located on the retina. We removed it through 23 gauge sutureless pars-plana vitrectomy.