I think it's a reference to the manner of his passing ... a skiing accident, IIRC.

No, but the report claims it harms adults' vision as well.

I actually used to use analogue instruments, so it's a bit different. However, some people have really poor stereo acuity, which is why they don't get it. I never found it causing any eyestrain at all.

Indeed. I spent several years working as a photogrammetrist. This involved staring into a stereoscope with both eyes pointing straight ahead and focussed at infinity, tracing details from a 3-D model resolved 9in my brain) from a pair of aerial photographs with about a 60% overlap.

That sounds a fair bit like the technology Mark Pesce reckons is so dangerous. I (and the probably thousands of other people who did this) have felt no ill-effects.

Jesus, I hope you don't live in my country. Can you spell the word "compassion"?