Surface area sizes of intravitreal iron wires: Their effects on the electroretinograms of rats

Abstract

(i) The a- and b-wave amplitudes decreased rapidly within one day after iron wire implantation. During the following week the amplitudes recovered to some extent. In the course of the next few months the a- and b-wave amplitudes of the eyes implanted with the largest iron wires (1.2 mm2) decreased steadily to about 20% by the end of the observation time, whereas in the groups containing smaller iron wires the electroretinographic changes were limited. (ii) Implantation of equally-sized glass splinters reduced the a- and b-wave amplitudes to 65-75% in comparison to the intact fellow eye. Fast recovery of both potentials to 83-93% followed within two weeks. The mean values of the a-wave amplitudes reached nearly 100%, those of the b-wave 90-95% in the next month.

Metallic Intraocular Foreign Body Removal By Magnet V/A Trans Scleral Pars Plana Approach

“…Metallic ion poisoning of intraocular epithelial structures is seen with copper, iron, lead, zinc and nickel. [3][4][5] Iron and copper have the greatest potential for metallosis. 5 Management of an intraocular foreign body begins with accurate diagnosis.…”

Metallic Intraocular Foreign Body Removal By Magnet V/A Trans Scleral Pars Plana Approach

“…Metallic ion poisoning of intraocular epithelial structures is seen with copper, iron, lead, zinc and nickel. [3][4][5] Iron and copper have the greatest potential for metallosis. 5 Management of an intraocular foreign body begins with accurate diagnosis.…”