Spectacles are parts of an assemblage items giving us an overall look. In fasion terms, they are classified as accessories, along with shoes, jewelry, handbags or watches but in health care terms, they are a medical device. And in many languages other than English, they are often described as a pro species, an artificial part of the body, part of you, making you who you are. And choosing your spectacles, is therefore, a major decision. Increasingly people own two or more pairs for different occasions or times of day and there is phrase for this in this industry and it is called life style dispencing. It dates back to the 1950s. The idea is that you wear one type of spectacles in the workplace and quite another at leisure or on the beach.