Sheldon: Why aren't you looking at the camera?
Amy: Oh, you know, I'm just working on my peripheral vision.
Sheldon: Well, that is nonsense. Your peripheral vision is fine. Are those women's magazines making you feel bad about yourself again?
Amy: Yup, that is what's happening.
Sheldon: I have told you before, those women are airbrushed to make it look like they have good vision.