Read the op. The cheapest burning one Is the red one. (From the op)
I would be wearing them specifically for the protection against the dot's brightness, I'm smart enough to angle the laser away and stuff so that there will be zero chance of accidental blindings. I won't just shine it into mirrors and stuff.
Don't be a fruit loop. You don't get that even looking at the dot with sunglasses can harm your eyes. It might just make it confortable for you to look at, but it's still going to harm it, slowly.
You never know, when whatever your pointing at moves, and hits a window, and even the slightest reflections, will forget your eyes up.
I'm just saying, your eye's safety shouldn't be at risk, because you couldn't spend $20 extra bucks.