Bausch + Lomb is planning to go back to the stock market after its acquisition by the Warburg Pincus investment fund in 2008, says Les Echos, a French financial daily, without indicating the timing of the move. It says B+L is investing €3.5 million in its three sites in France, which ranks as the group's third-largest market after the U.S. and Japan. At its unit in Montpellier, which employs 330 people, B+L is expanding its customer service center for the Southern European region, adding a training center for its personnel. The group is also expanding manufacturing and distribution operations at its factory in Aubenas, which employs 200 people, as it is now covering the needs of a larger part of Europe and emerging markets. B+L is also investing in R&D at its eye surgery facility in Toulouse.