Hi Neurogurl,
I have depth perception issues--I was having serious issues driving for a while as a result. Burbur from NutraMedix helped with that a bit. I still have some issues with it, but it's better than it was. I also am sensitive to light. I have some floaters, and I tend to occassionally see things that aren't there and miss things that are there. I don't see halos around lights as much as I did before. I also don't see things as clearly as I used to.
Neurotoxins put pressure on the optic nerve, causing deficits in visual contrast. This is true of all neurotoxin mediated illnesses.
Have they tested you for bartonella? I only ask because you have mentioned (in the past) a lot of neurological symptoms.