Went to eye doctor today. Got some bifocal contact lenses. Hoo Boy! Also got some new bifocals, the reading part 4.50 and 5.00. Up from 4.00 last glasses three years ago. No wonder I was getting headaches. Asked him about welding with them, and he said so long as I use proper shading, no problem. Said welders only had problems with flash burns. I'd guess they weren't using the right shading. Can't wait to get the glasses, and I got a free pair of the contacts to try out.
Damn, I can see again.