Officials of Fielmann indicate that the leading German optical retail chain continued to post increases in comparable store sales in the last months, revolving around 3 to 4 percent year-on-year. In a preliminary statement, the group said it achieved a pre-tax profit of €78 million in the first six months of 2010, compared with €72.2 million in the same period a year ago, and higher consolidated and external sales. Consolidated sales grew to approximately €488 million from €464.5 million. External sales rose to around €573 million from €548.3 million.