Bill Beaty
quote
"I've heard claims that the human retina can see 950nM light just fine if the human is looking into the output of an infrared laser. I haven't tried it myself!"

I'm glad you haven't tried this ;-) Eye damage would be imminent.

You don't need an IR Laser to see these wavelengths, I see 940nm dead easy, but has to be in total darkness, with a time period for the eyes to get adjusted. If your on-axis you can see the IR, this may vary between individuals.

Steve