That's total BS. Go to any decent optical shop and you will find a wide variety of frames from the thick wanabe hipster glasses that Perry is now wearing to nearly invisible rimless styles. Here's an example of what's available: http://www.viziooptic.com/mens-designer-eyeglasses
Again, leaders lead, followers follow. When it comes to eye glasses, Perry is a follower. I fear that Perry as POTUS would also be a follower in that rather than taking a principled stand, he would follow the advice of Barbour, Rove, et al., and blow the best opportunity for conservative change since Maximus Reagan.
Yes, I copied and pasted your link and saw quite a few styles available there.
Who knows, maybe his wife picked his frames out. Or maybe not. Either way, they’re not very attractive, but I’m not going to assign some kind of higher meaning to them.