I have even thought of designing some glasses with blinders to help me cross such bridges.
That is not hard to do. Get some thick opaque plastic sheeting, cut a rectangle, punch two holes in it in line and thread it on the earpiece of your eyeglasses. One rectangle on each side.
it works!
Or you can get some welder’s safety glasses with dark side shields.
That works also.
in Cal. they view through their bellybuttons
it’s the most popular method there that I have noticed...