I would recommend a trip to a store buddy (ring in advance to see what they stock...make sure there is a decent range)can anyone recommend a mask that provides really good eye clearance / lots of space in the frames for this sort of thing?
i bought some cheap n tacky video glasses at the start of the year (to get a hud / gun cam feed sort of thing going on) but haven't got round to trying to stuff one of the displays in a mask yet.
looking at my vents i suspect it could get a little pokey!
I can give you recommendations...other people can. But that doesn't mean your glasses are going to fit them. For example...i was told dye i4's were a silly choice with glasses. Well what do you know...mine fit as snug as a bug. I choose not to wear my glasses for PB though so its not really an issue for me. They are only for long distance reading... If an object moves i shoot it. read later.
Hope you manage to get sorted though. As a starting point there is a section here: http://www.store.justpaintball.co.uk/masks-goggles/best-for-glasses
with recommendations (p.s. that's not me endorsing that particular website. just one which i know has a section for it). a good starting point.
hope it helps. my recommendation though...contacts