At the age of 70 was changed to offer Rogers O2 fitness denot ever focused on the glasses frame into a company that focuses on the eye lens instead. The first progressive lens, a loud drum roll frun denot manufactured itself, called "Progressive R" has been released to the market in 1981 and has been a success right away, because it is a new innovation that is happening in the market for contact lenses. Eyeglass frame market, there has been a noticeable change in the age of 80, which has occurred, and are still experiencing a problem cheap glasses frames from the Asian influx into the market. Health system reform by Minister of public health at that time, Norbert Blum (CDU) has been the serious consequences mentioned. Causes a change in the Vietnamese market, as a result, song eyewear sales fell more than 20% in the first half.
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