I too need a fairly strong presciption. After destroying one pair of extremely expensive prescription lens' in a bike crash a few years ago I discovered these folks. They have different styles and a sizing process on their web site that allows finding the best fit over your existing eyeglasses. They are extremely good quality, which is reflected in their price. But that is still nearly an order of magnitude less then similiar prescription lens' (at least for me).

https://www.fitovers.com/