Luxury Optical Holdings (LOH) is the leading premium and luxury optical retailer in the United States with a network of 34 locations in key urban markets throughout the country operating under the banners of Morgenthal Frederics, Robert Marc, Salle Opticians, Georgetown Optician and Leonard Opticians. LOH also distributes its own buffalo horn frames under the brand Morgenthal Frederics and a collection of premium eyewear under the Robert Marc brand. It is also the exclusive distributor in North America of German eyewear brand Lunor.