I wear a pair of el cheapo sunglasses which are really comfortable and
seem as good as ones costing ten times as much.
I have just bought a Cateye Astrale but can't read the display when
wearing my sunglasses because of their polarizing filters.
I guess there's no solution other than a new pair of glasses?
Incidently, here in Australia, when I'm not cycling I spend a lot of
time near the sea or by the pool - yes even in winter :-), and that's
why all my sunglasses have polarizing lenses.