While I can’t tie this in with my evoked potential test, I know what you mean about your eyes getting the overwhelmed feeling, and not just with driving. One of the worst triggers for me is wind. When everything is moving around, not only in front of me but also in my peripheral vision and behind me, it makes me quite dizzy. In terms of driving with this sensation…gosh, I wish I had some good suggestions to give you…the only thing that I do I described in my previous post. I honestly don’t drive much these days. I really do think that being aware of, and trying to control rising stress levels that this sensation causes also helps.
I do have a couple of techniques I use when I encounter this sensation in a non-driving situation, but they while they help some, they do not fix the problem. One, is a more extreme version of the narrowing my focus thing that I mentioned before. In situations like a windy day, crowds, lots of flashing lights, fireworks (this was bad, not recommended at all) or just an extra “dizzy” day, I will focus as much as I can just on my task or one particular object. If I am walking, I will often look down (if you try this, just make sure you don’t walk into a sign or a pole or anything…I’ve done this J)
The second technique I use for several variations on my “dizzy theme”…okay I hope this doesn’t sound too crazy…. Several months ago I went through a period of time where if I was standing up or walking, I would not only feel like everything was starting to move and spin, I would also lose my balance. I was not sure where my body was in space, and I often had the sensation that not only was I moving strangely, but that parts of the world around me that I knew were solid (i.e. walls) were moving too.
I started touching things that I knew were not moving, such as walls, doorframes and chairs, and somehow touching the objects and actually feeling that they weren’t moving around really helped my stay on my feet and reduced a lot of the dizziness. I would actually walk around trailing my fingers on walls, or moving from solid object to solid object. I’m sure I looked really weird (especially at work…oh my gosh), but at that point I could have cared less because it gave me some relief. I now find that touching something solid helps with the overwhelming feeling sometimes as well. The other thing I do is take Antivert, which is a motion sickness med. I only take it when things become really uncomfortable, because I don’t want it to lose its effectiveness.
I hope that some of this extremely long post (sorry) helps some, and if not, at least know that you are not alone in this.