Why do I feel dizzy when I am in a classroom wearing my anti-glare glases?

I don't know. I can't see your glasses. But chances are the RX is off, I doubt this is an issue due to the Anti-reflective coating. Either way, this is something that you will have to deal with where you purchased the lenses. They should be able to fix the problem.

How long has this been an issue? When were they purchased?