HIRSCHBERG states that foreign bodies of copper, even though aseptic, cause by their chemical disintegration suppuration, detachment of the retina, etc, much more readily than aseptic particles of iron, which may remain in the eye and cause no reaction. He adds two new observations to his sixteen previous ones. In one case, the splinter of copper was removed with forceps through a scleral section; in the other, after iridectomy, by passing forceps through the lens and grasping the body which lay just behind it. The lens will be removed later.
A look from the past . . .. Arch Ophthalmol. 1999;117(4):531. doi:10.1001/archopht.117.4.531