It's also worth mentioning that the power rating in many commercial laser pointers should not be considered reliable. It's also possible to overdrive them. I'll put out this way, in my undergrad I spent a lot of time in the optics lab and the post doc had a fun story about where she was working with IR lasers. Basically it was "There's light! Yay! It's working! ... oh fuck! There's VISIBLE light! I'm burning my eyeballs!" It's easy to do some serious damage even with cheap electronics and expertise. The big problem is that laser damage happens without you feeling a thing. If you do feel it, you're probably getting seriously fucked up.
You lose sensitivity to this bandwidth as you get older. But if it's bright enough you'll see it. It's not like there's a hard cutoff in your eyes detection, it decays and you're very insensitive to big bandwidth, but not necessarily blind to them
> There was a slight loss of -0.6 dB per decade in the cumulative threshold, but regression analysis showed the lack of a significant correlation between age and sensitivity. The intergroup analysis confirmed that infrared vision did not significantly differ between the four decades of life. The sensitivity level did not significantly correlate with visual acuity, spherical equivalent, retinal thickness or straylight parameter. The comparison of values measured at the seven locations showed a significant difference between the central (19.7 ±2.2dB) and the peripheral retina (22.5 ±2.4dB).
Source: https://iovs.arvojournals.org/article.aspx?articleid=2745068
LGB : Lyrically gifted brother
JDAM : Japanese digital art museum