Electrophysiology in Experimental Siderosis: a Follow-up Study after Removal of Intraocular Foreign Body
An iron foreign body was placed intravitreously in 19 rabbits. In 11 animals the foreign body was surgically removed after approximately 13 weeks and in 8 animals the extraction was performed after about 2 weeks.
Postoperative complications were encountered in 7 animals. The ERG changes of the remaining 12 animals were recorded over a 56 week period after foreign body removal.
All experiments used one eye as the experimental eye and the fellow eye as the control. The a- and b-wave amplitudes of the experimental eye were expressed in % of the control eye.
The results show that removal of the foreign body does not improve the ERG nor prevent its further deterioration.
KeywordsRetina Toxicology Siderosis Transretinal
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