Shamir Optical Industry's operating margin rose by 1.0 percentage points to 11.4 percent in the 1st quarter, on revenue growth of 26.9 percent to $29.3 million. The gross margin fell by 5.0 percentage points to 52.5 percent, while net income increased by 11.4 percent to $2.3 million. The company claimed to have grown in all markets, and to have made ?additional operational inroads? in the UK, France and Turkey.