LensCrafters is North America's largest retailer of prescription eyewear, as well as non-prescription sunglasses. LensCrafters was founed in 1983 and has subsequently expanded to over 850 stores in Canada, the United States, and Puerto Rico. The stores usually feature independent optometrists on-site (or in adjacent store), and are well known for their quick in-store turnaround, allowing for customers to walk in, obtain an eyeglass prescription, select frames, and have their glasses made during a single visit, with about a one-hour wait for construction. They maintain corporate headquarters near Cincinnati, Ohio, along with Sunglass Hut International; but, in fact, both firms are wholly owned subsidiaries of the Italian-based Luxottica. Luxottica also owns Pearle, Target Optical, Sears Optical and EyeMed Vision Care.