EE WAS WORKING ON TOP OF UNIT 1 KILN. AN EE USED AN AIR BLOW GUN TO REMOVE SLAG, FLUX AND METAL SHAVINGS FROM THE WORK AREA AND INADVERTANTLY BLEW THE MATERIAL IN EE'S DIRECTION CAUSING A PIEC E OF MATERIAL TO LODGE IN HIS EYE. WAS EVALUATED BY A PHYSICIAN ON 1-16-02 AND EYE MEDICATION WAS PRESCRIBED.