[mdip]

Agreed, and that's to say nothing of the speed at which blindness can occur. Then there's those pesky IR lasers which at the right class level can blind you in wavelengths you cannot see[0].

[0] Which to me has always been one of those "hard to believe things" and, indeed, I've never worked with an IR laser or tested this (nor would I be interested in doing so) but I can't think of something more terrifying (related to blindness, anyway) than walking into a room, looking at something, seeing nothing particularly interesting and then ... seeing nothing at all ever again.