DALLAS--(BUSINESS WIRE)--Kendall Law Group, led by former federal judge Joe Kendall, is investigating Synergetics USA, Inc. (NASDAQ: SURG) and its Board of Directors on behalf of shareholders in connection with the proposed sale to Valeant Pharmaceuticals International, Inc. (NYSE: VRX). According to the terms of the agreement, Synergetics shareholders will receive $6.50 for each share of Synergetics common stock held. In addition to this cash payment, Synergetics stockholders may receive an ad