SmartBuyGlasses sells prescription glasses, sunglasses, and contact lenses online. A frame is paired with lenses made to the prescription the buyer enters, or sold as a frame only when the listing says so. Sunglasses may be plano or prescription, and the listing states which.
The prescription fields, including sphere, cylinder, and pupillary distance, have to match the written prescription. A single-vision lens and a progressive lens are different orders. Contacts are chosen by brand, power, and pack size, and they are not the same checkout as a frame. Some frames can take a prescription and some sunglasses cannot.
Production of prescription lenses starts after the order, so those glasses take longer than a stock frame. The product page shows which lens options that frame allows and where it ships.