Posted by martin perman on 09/11/2014 17:26:57:
For work a few years ago I bought prescription safety glasses from my optician.
I bought some about 8 years ago, bifocal and tempered glass (couldn't have plastic as they won't stand up to splatter from brazing). The bifocal is medium-range and short-range, as I don't need long-distance vision in the workshop. They were about 1/2 the price of normal spectacles as they were classed as 'work-wear'. My usual spectacles last about 2 years, but I haven't even managed to put a scratch on these yet.
Bob Unitt