I made a fatal error when welding and ended up with arc eye! Oh my god it hurts!!!
The amazing thing was the fact that it happened at about 3pm, I went home, went to bed absolutely fine and it wasn't until I was awoken at 2am by a horrific pain in both eyes, water streaming down my face and the inability to keep my eyes open that I even knew it had happened. The only way I can dcescribe it is imagine you are walking through a sandstorm with your eyes wide open or that somebody has put sandpaper behind your eye lids!
The doc said that in most cases it only ever happens to people once, and I can see what he means as I will never make that mistake again!!!!
Hopefully another day or so and the pain should go way. I'm sure some of you will have had this, but for anybody that hasn't please don't make the mistake of ever looking at the light of the welder.