AN EMPLOYEE THREW A USED 4 1/2"" GRINDING DISK OFF AN ELEVATED PLATFORM & THE DISK BOUNCED OFF A WELDING TABLE & STRUCK ANOTHER EMPLOYEE IN THE RIGHT EYE. EE WENT TO THE E.R. & WAS INFORMED HE HAD A SCRATCH ON HIS EYEBALL, APPROX. 3/4"" X 1/16"" & THAT HE HAD A PARALYZED PUPIL.