I made some glasses for my character, and gave the lenses a glass material, which works fine, except for the fact that at some angles, when rendered, the lenses turn completely white. I don't think this is reflection, because it does not gradually turn white. One angle it's fine, and turn it ever so slightly and it goes completely white.
I have no clue what could be causing this.
EDIT: I have posted the Blend file on the Blend Exchange so you guys can check it out!