WHILE EE WAS CLEARING A TREE LIMB SNAPPED BACK,BREAK THE SIDE GLASS OF THE D-10 BULLDOZER HE WAS OPERATING. A FOREIGN PARTICLE CAME IN CONTACT WITH EE'S RIGHT EYE. HE WAS TAKEN TO THE LOCAL ER . HIS EYE WAS EXAMINED & NO PARTICLE WAS FOUND. THE DX WAS CONJUNCTIVAL IRRITATION. PRESCRIPTION EYE DROPS ""SULFACETAMIDE"" WAS GIVEN.