I mean they can be reflected but he's immune to his own powers, so he can't be hurt with them. Which is why closing his eyes when he loses his glasses works to keep it contained! They established at some point that he just sort of...reabsorbs the energy...

FAUX SCIENCE IS FUN I'm a geneticist so actually playing an X-Man is kind of a headache for me sometimes BUT IT'S NICE TO BE HERE I'M SUPER EXCITED