Snakes can still eat during shed, it all depends on the snake as does the shedding process his eyes could have very easily blued over night and cleared up, we have a general idea on how long it takes a snake to shed but nature dosent alwaya fallow timelines set by man, our king snake blued the day after we got him, and by the next morning he was completly shed, just make sure the eye caps come off and your fine