Flip up blinders are made to secure to your shooting glasses with a clip and can be flipped out of the way when you don't need it.
They have more blinders on than the general population.
Have you ever seen a horse plodding down the road wearing blinders?
Unfortunately, their ideological blinders prevent many on the Left from seeing it.
An authentic Queen stage set complete with lighted gangways, risers and stairways fitted with audience blinders.