They might be affected to some degree. Will it debilitate him? Probably not, but it can be disconcerting and uncomfortable. Couple it with the energy drain and it can be worrisome.
Btw, I have a question. Would Khazna's perception be effected at all by bright flashes of light, or pitch darkness?
Don't forget that the environment does take a toll slowly upon your actions.
@Skallagrim Hey old bones what exactly is Cold light? Is it a solid? Gas? Plasma? What happens if you touch it or something touches it?
Raelis nanites are both replicating and self repairing. They can rearrange matter in the same way you described your mibs doing. Aka they can and will repair faster than they are destroyed by your mibs.
The rest of your post I have no qualms with however. Though it's going to be funny when I reply.