A lot of folks like to blog about how weird the 50's were when it comes to comics, but this one from 1972 takes the cake. Here, folks, from Superman #249.
Not only has his X-ray vision been reversed, his eyeballs must have rotated 180 degrees as well. And I'm wondering how looking at your own brain can be more horrifying than, say, using your x-ray vision to watch Lois during work and have Perry White walk in front of you. That, my friends, is the billboard for Hell.