I have wrap aropund (that is sunglasses with sides) dark galsses that are supposed to reduce the glare by 60%.
I hate riding without glasses - because of the glare, and because the wind makes my eyes water

We just gave my eldest son pro-race glasses for his birthday, not cheap but they come with 4 different sets of lenses you can use for varying conditions... lens for dark conditions that do not reduce the light, medium and hire galre lenses that reduce most of UV as well, and lenses for dappled light (eg riding through a wooded area). He thinks they are marvellous