EE WAS USING A GRINDER TO REMOVE BOLTS FROM THE CATWALK ON THE MAST. HE WAS WEARING SAFETY GLASSES. WINDY CONDITIONS. WHILE CUTTING, A METAL PARTICLE GOT IN BEHIND THE GLASSES AND INTO HIS RIG HT EYE. DID NOT NOTICE AT THAT TIME. LATER ON, FELT EYE GETTING IRRITATED. FELLOW EE SAW IT IN THE CORNER OF THE EYE. WENT TO ER WHERE IT WAS REMOVED.