The Fatshark style goggles will not fit over glasses. I wear glasses myself and have had this issue. However, I'm also nearsighted, so the Fatsharks are great for me; I'm looking at something that's right in front of my face, and I can see great.
My first pair of FPV goggles, though, were the Quanum Cyclops goggles. They fit over MOST glasses without an issue at all. I say MOST because I have one pair of glasses where the frames are very wide, and they caught on the corners of the foam, so every time I took the goggles off, my glasses went with it. Easy solution, I performed some minor surgery on the sides, removed the bits of foam where they were catching on my glasses, and voila!
The Quanum Cyclops V2's that I have, they're not the best goggles. But, for $60, they are good enough to start out with.
