Eye Care Centers of America had a sales increase of 2.3 percent to $131.1 million in the second quarter ended July 4, attributed to new stores. Comparable store sales in fact fell by 1.6 percent. Net income dropped by 45.8 percent to $3.2 million. Managed vision revenues grew by 30.7 percent in the quarter. For the first six months of the year, the American optical retail chain's turnover rose by 6.0 percent to $291.6 million, with increases of 2.2 percent in comparable store sales and 15.9 percent in managed vision care. Net income for the half was nearly flat at $20.25 million, down from $20.5 million in 2008. The 438-store chain, which is owned by Highmark, opened 16 new stores in the first half of the year, and closed four.