My wife bought me some really nice sunglasses for Christmas. I like them a lot, but I wear prescription glasses e/w progressive lenses and I can't get these with prescription lenses.Would I be just as well off taking them back and getting a pair of Cocoons to use over existing glasses, placing diopters in the new glasses or getting prescription sunglasses. Are the Cocoons good quality lenses compared to the high price sunglasses.... Looked in archives couldn't seem to find my problem..... Anyone have an opinion ...Thanks.....crappie1133