Get up to 60% off select tortoise-frame prescription eyeglasses with our exclusive coupon code BRADS60T during checkout at Glasses USA. Plus shipping and returns are free on all orders, and these frames include single vision lenses or reading lenses. This drops select frames to as low as $15.20 with the code. There are over 100 styles from which to choose for men and women. Certain exclusions apply. There is no sales tax.