"Sry but these clases are dumb."
Brilliant statements on the interwebs. People get extremely focused, I work in computer programming and the eye strain can be very irritating if you continuously stare at the screen for too long. It isn't that you "forget" to blink, but rather you are starting to become accustomed to what you are looking at, and since most areas where you are near computers are going to be well air-conditioned and decent levels of humidity, your eyes are bothered less frequently than when you are up and walking, your eyes don't receive any stimulus to warrant your body registering a blink. I think the fog is a rather stupid way of going about this, but a LED light could lead to more retina damage and lead to lawsuits, and so could a blast of air into your eye. This isn't the most effective way of doing things, but it gets the job done.
As for who will be wearing these, I'm sure they'll become required in many computer-intensive employers. Simple $150 investment can reduce the amount of insurance employers need to pay out for prescription glasses, and will undoubtedly increase productivity since your eyes will not become as strained working for extended periods of time on computers.