My Little Pony: Friendship is Magic - Image #177,974

It's sort of like a hard pressure and a slight burning sensation. You don't actually feel that much since the eye doesn't have many nerves in it – none at all in the lens. Just so long as the knife doesn't hit the sides, where the skin is, you won't actually feel that much.
(The more you know)

v- well telling from the eyepatch in Platus' avatar…