twang
I wear glasses as well but wore them before I took up the bow
I use a kisser button and have the string across the center of my nose which really puts the sight plane in the center of my lenses also I dont use a peep
you could try the hind sight or the yikes bow sight
I use the hind sight which I have found helps a lot.
As for the foging up problem I cant help there we dont get those big freezers here in Texas