Possible long term effects of chemical warfare using visual evoked potentials

ABSTRACT

Some studies have already addressed the effects of occupational organic solvent exposure on the visually evoked potentials [VEPs]. Visual system is an important target for Sulphur Mustard [SM] toxicity. A number of Iranian victims of Sulphur Mustard [SM] agent were apprehensive about the delay effect of SM on their vision and a possible delay effect of SM on their visual cortex. This investigation was performed on 34 individuals with a history of chemical exposure and a control group of 15 normal people. The Toennies electro-diagnosis device was used and its signals were saved as the latencies. The mean of N75, N140 and P100 of victims of chemical warfare [VCWs] and control group indicated no significant results [P>0.05]. The VCWs did not show any visual symptoms and there was no clear deficit in their VEPs