potentially stupid question (feeding/seeing)

can the beardeds see to eat in the dark?.. i think spartan is spending too much time watching whats going on outside his tank to focus and eat. he hasnt eaten anythign all day and its making me concerned. i would like to leave the crickets in there over night for him but ive read they can munch on the beardies skin!

They don't eat at night but leave a piece of carrot in there. the crickets would rather eat that than him.

lol, i had done that to be on the safe side ;) thank you!!