I haven’t had it done to me personally but a bunch of guys at my Station have been lazed from the south side. It’s not unusual... Laser protective lenses for available eye pro are ok but as a previous poster said they do not offer protection from all spectrums. IR can be even more dangerous IMO because you aren’t going to have any indication or warning that it is being employed where a vis laser you may see and have a chance of getting behind cover. Most of us don’t wear eye pro at night (I have clear lenses close by most of the time but usually don’t have them on). The laser protective lenses can help but are not a definitive answer.
People who use these against us (FLEO) should really become familiar with our UoF policy (at least for CBP not sure about the Marshalls or others under DoJ)...someone using force that can result in serious bodily injury (blinding definitely qualifies) against us or in defense of someone else is well within policy to justify a deadly force response.