I've had several of these over the years, and they work great. They are so much better than paying for prescription sunglasses, and then having to change them out. I keep a couple pair in my car, one pair next to the dog's leash for dog walks, and a couple extras for trips. The only issue I've had over the years is that the lens on one pair kept coming out, and finally, finally, one of the bows broke on one pair (which motivated me to find a replacement at Amazon). Highly recommend for anyone who wears glasses and wants sun protection without paying for Rx sunglasses.