Save 50% on a single-vision prescription and frames at Glasses USA, plus shipping is free when you use the code NEW50FS (free shipping saves $8.95 in fees). Glasses start at $38, which drops the price to as low as $19. The pictured U 40 Tortoise Glasses drop from $48 to $24. Use their frame finding wizard to find the perfect frames for you. Plus, many glasses are FSA/HSA eligible, so you still have time to use your flexible spending before you lose it at year-end. Certain prescriptions may charge an extra fee, and some exclusions apply. Sales tax is charged in most states.