Google "lab safety goggles". You can buy cheap ones for under $5 (not including shipping).
They fit over most glasses. Not Lady Gaga or '70s glasses, but most glasses for the last 20 years.
If they have vent holes on the side, good. The particulates might get in, but the size of the holes won't produce much by way of airflow so what gets in won't be much. Unlike the case with eye glasses, where every head gesture produces eddies behind them, pulling in new air and what's in that new air. Remember--this isn't a ritual purity exercise, where part of a leg from a flea in the bread in your turkey stuffing renders the entire meal unclean and unable to be eaten. "Exposure" doesn't lead to infection because sufficient virus has to be involved at a given time. The body (and random events) prevent too little virus from actually infecting you.
But remember why we're wearing masks anyway--your mask isn't there to protect you. Most particles that you'd encounter wouldn't be stopped by a normal surgical mask (just the mid- and large-sized droplets). Your mask is there to protect others. A lot of those smaller particle start off as mid-sized droplets and become smaller as they dry out, leaving just a small bit of dry stuff real quick. So your mask is there to stop what comes out of your mouth. Masks are altruistic--like the actual meaning of what the media call "case counts" it's often said and seemingly even more often forgotten. Or perhaps it's just not understood.
(So, yeah, we can say that people not using masks are showing blatant disregard for others, but since most people here have trouble with the idea that the masks they're wearing is to protect others and not themselves, to make that claim requires asserting that "those people" are both more malicious than a lot of DUers but also much smarter. I don't think they're smarter; I also don't think they're malicious. I also think fundamental attribution errors are bad.)
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