The eyes are the windows to a business model for Bausch & Lomb. Operating as Bausch + Lomb, the eye care firm is best known as a top maker of contact lenses and lens care solutions (including the PureVision and ReNu brands). Along with its contact lens products, Bausch + Lomb makes prescription ophthalmic drugs Alrex, Lotemax, and Zylet. It also makes over-the-counter vitamins and drops through its pharmaceuticals division. The company's surgical unit makes instruments and equipment for cataract, vitreoretinal, and other ophthalmic surgeries. Bausch + Lomb markets its products in more than 100 countries worldwide. Bausch + Lomb is owned by Canadian drug maker Valeant.