If you're not using it on or near your eyes, and on a low setting, and only every other month, then it's probably fine. This guy was using it directly on and around his eyes, weekly, for several minutes each time. Just pay attention and stop if it feels like it's affecting you in any negative way. This guy also started seeing lots of floaters before the retinal detachment.

[–] username123@sh.itjust.works 2 points 1 month ago

Iono, this has "trust me bro" source energy. Vibrations are mechanical structure killers in many different contexts. I would try to find a safer alternative. Not all damage can be avoided, but reducing even light damage over time pays off.