Water sports enthusiasts swear by sunglasses with polarising filters. For them, it is vital to minimise the reflections and mirroring effects on the surface of the water and hence reduce irritating glare. Winter sports fans can read the slope more easily and reliably.
However, polarising sunglass lenses may also be just the thing you're looking for to enjoy more comfortable vision in everyday life, e.g. for driving, sports or everyday situations when you are confronted by strong sunshine.
Lenses with an integrated polarising filter may be the perfect solution for people who are sensitive to glare.