At about 9:30 am this morning I was briefly flashed by a mig welder for a split second directly before I immediately closed my eyes and looked away. Only slight pain afterwards from bright light. I was wearing safety glasses at the time. It is now 22:50 and I am wondering if there is still any possibility of having arc eye. Will the pain occur during sleep and will I wake up to it in the middle of the night or should it have already arrived whilst awake as it has been a number of hours since I have been flashed?