I buy glasses online. The dr. will give you your prescription and you can order online for 1/4 the price. I've never had any trouble with customer service or quality. I have used several online glass lens business. I asked someone in the eyeglass dept at Walmart if she would measure my glasses size and she did. Ask when they aren't busy. She even fitted the glasses for me when I got them. I buy new glasses a lot, I like different styles of frames. It is so much cheaper online. I wear no line bifocals too.