A well-known retailer of eyeglasses, 39DollarGlasses.com, advertises its goods and services on the website. Other leading retailers of prescription eyeglasses, like EyeBuyDirect, Zenni Optical, and LensCrafters, are competitors to 39DollarGlasses.com. In the very competitive internet eyewear market, 39DollarGlasses.com sells mid-range purchasing size goods on both its own website and partner sites.