Caddis Eye Appliances is a well-known retailer of frames and eyeglasses that advertises its goods and services on caddislife.com. Caddis Eye Appliances faces competition from leading providers of prescription eyewear, including LensCrafters, EyeBuyDirect, and Zenni Optical. Within the fiercely competitive online eyeglasses and frames market, Caddis Eye Appliances offers mid-range purchase size items on both its own website and partner sites.