Fielmann AG engages in the operation of and investment in optical businesses and hearing aid companies. It also manufactures and sells visual aids and other optical products. It operates through the following geographical segments: Germany, Switzerland, Austria, Spain and Other. It offers glasses, frames, lenses, sunglasses, contact lenses, related articles and accessories, merchandise of all kinds and hearing aids and their accessories. The company was founded by GÃ¼nther Fielmann on September 21, 1972 and is headquartered in Hamburg, Germany.