No. But
effective,
I ride out before sunrise - so I often ride home with a very low sun.
My helmet has a dark flip down - but that darkens
everything - including the sharp shadows on a bright sunny day.
I prefer to ride into an early morning sun after applying a strip of painter's tape for a visor. (like putting your car's sun visor down)
I don't ride with a low afternoon sun. Too many cars being blinded. (Clooney was hit by a guy who said the sun blinded him. Didn't know he was there, until he
"heard the thump" !)
Stig