My Take A Look mirror is mounted to my helmet so it's available with any eyewear. I use sunglasses in bright daylight and clear safety glasses at night or on hazy days.

I cut a thick plastic card (a spare grocery store discount card) to hold the mirror by those three rubber tipped adjustable nibs. The card was cut to match a slot in the helmet's styrofoam liner. The mirror stem and plastic card holder are zip tied through the helmet's vent slots.

The mirror is adjusted outward, rather than inward as shown in the above photo attached to the glasses. To get a comfortable angle so I can quickly see behind me without pivoting and swiveling my head too much, I've set it where I can see my own eye in the lower innermost corner. It was a little distracting at first but I'm gradually getting accustomed to it.

It still won't replace my handlebar mirror. I prefer the Mirrycle and plan to get another so both bikes will have one. I've been swapping the one Mirrycle between the two but a couple of times I've left home without the mirror.