Bug to the Head

I was bicycling last week, just before dusk, when a bug hit me in the glasses so hard it actually caused me to rock my head back a bit.  It was hard to see out of one lens after that and I thought it was just a smudge. But when I took the glasses off to clean them, the bug mark wouldn't come out.  It's etched into the plastic. Must have been a beetle.  Glad I wear the glasses as often as I do, although I'm disappointed to lose my lenses.  Fortunately, Ming helped me pick out a set on RAGBRAI that came with four additional sets of lenses (although two are fairly clear), so I have an immediate backup.