EE WAS CLOSING A FEED SHELF DOOR ON PREHEATER TOWER WITH LEFT HAND. RIGHT HAND WAS HOLDING ONTO LEDGE ABOVE HIS HEAD. WHEN HE MOVED HIS RIGHT HAND, DUST FROM THE LEDGE FELL BEHIND HIS FACE SHI ELD AND SAFETY GLASSES INTO HIS EYES. HE WAS TAKEN FOR MEDICAL ATTENTION. HIS EYES WERE FLUSHED AND HE WAS GIVEN RESTRICTED DUTY. HE CALLED IN SICK.