Forum:Galaxy-eyes photon and d prison

ok so im in a match and i have galaxy eyes on the feild and my oppenent has glad beast. so i used photon effect to attack and he actives d- prison but i read on the tip of the galaxy eyes that it can avoid d-prison. but my the glad beast user says i cant use the galaxy effect because the wiki tip could be fake. and that it occurs battle or something like that. so can someone explains the card banishing effect to me so i can quote you can explain to him about galaxy eyes effect.