He was loading round when anfo pot hose got away from him causing dust to be kicked up into air. The dust went up under his safety glasses & onto his L. eye lashes. He attempted to wipe his eye off with dirty gloves on & it pushed dust into eye. On 6/26/11 event occurred reported it & went to medic. On 7/11/2011 he went to doctor & RX was issued. No time missed.