Is there a warranty on the glasses you purchase

Yes there is a warranty but you can choose if you want it or not

Yes, but there are restrictions depending on whether or not you use insurance/their discounts etc. The staff there is incredibly knowledgeable though and will go through all the options so you know what you're paying for ans what comes with it! And they have the pricing and order double checked by the optometrist before you check out or pay for anything!