Received my Zurich sunglasses yesterday and used them today while
flying my model aircraft. All I can say is wow, they are clearer
than the prescription sunglasses I had. They gave me a wider field
of view with no distortion than the prescription and clip-on sunglasses
I have used in the past. Great product!
They are worth every penny of the purchase price and a lot cheaper
than the $250 plus that I have to pay for prescription sunglasses.