Can anyone post about a particular type of glasses they bought that seem to be doing a good job? I have read the previous threads on here and have gone to the sites but the prices for laser safety glasses range from $30 to $500. If I had to pay $500 to protect my eyes of course I'd do it but I was hoping someone would know whether that was necessary. I run a 10.6um CO2 laser at 100watts. Thanks for any help you guys

tony