Buy one pair of Eyeglasses or Sunglasses, and get another pair free when you use the code BOGO2013 at Glasses USA. Single-vision prescription lenses are included with every order. You can choose glasses for as low as $38, so you could save at least $38 on a free pair! Check out the pictured Noah Black Glasses for $48 - and get another pair valued at up to $48. Certain prescriptions may charge an extra fee, and some exclusions apply. Shipping starts at $8.95 and sales tax is charged in most states.