Many people what to know that how online sites discount eyeglasses so much? usually, the price of such glasses can be only half or even a quarter of the price at local stores, so, is there any quality problem of such eyeglasses, Actually, they don't have the additional overhead constraints and expenses that the traditional retailers will have, such as retail space rent, behind-the-counter employees and warehousing, these savings are passed on to you, but you also have to check the refund policy when buying eyeglasses online!