Just had to get new glasses. After reading this thread I paid the extra to get ANSI safety-rated frames and lenses for both pairs (neither my insurance nor Medicare pays for this) plus safety side panels for the ones I usually wear hunting and shooting. Stuff happens to us curious souls--nice to be able to see afterwards....

Very interesting thread; I appreciate all the thought and experimentation (and attendant cost and risk) that some of you guys go through for the benefit of the shooting/collecting community (not to mention your own curiosity, a very valuable thing in itself).