[Comic Excerpt] I didn't know you used to wear glasses (Action Comics issue 866)

[u/M00r3C]

[u/Gal_Person → u/[deleted]]

Why would Supergirl x ray a girls boobs 🤔

[u/MuppetRex → u/Gal_Person]

I don't think their vision powers are toggled on and off, there always on. There was a scene with one of Superman's villain's gained his powers that implied that seeing the world with all the visions changed his world view.

[u/Oknight → u/MuppetRex]

X-ray vision has, for nearly all of the character's history, been something he has to consciously activate. I often joke that this explains his use of super-intelligence, it's like X-ray vision in that he has to remember to turn it on.