I used to wear my regular glasses and as most 50+ people I suddenly couldn't read without taking them off. So to compensate, I bought over the counter reading glasses and would wear them on top of the other to do my crocheting and watch tv. I hated the thought of spending another $150 - $250, with benefits mind you, to get another pair of glasses. Now because the price was so low I ordered bifocals and I couldn't be happier.