WHILE WELDING IN A DIESETER SCREEN WITH ANOTHER EE FOR MOST OF THE MORNING THE WELDER-MECHANIC RECEIVED FLASH BURNS TO BOTH EYES. THE EE DISCOVERED THIS ABOUT 11:30 PM AT HOME. HE STATED THAT HE DIDN'T KNOW WHEN HE INCURRED THE FLASH. HE WAS GIVEN PRESCRIPTION EYE DROPS AND WAS GIVEN PAIN MEDICATION AND RESTRICTIONS OF NO WELDING FOR TOW DAYS.