Magnetic metal (iron and steel) was found in 68 cases, non-magnetic metal in 34 cases (copper-containing in 13, lead in 11) and non-metallics in 4 cases (glass 3 and plastic chip 1).

• 这些眼内异物有68例为具磁性金属（铁及钢），34例为非磁性金属（铜类有13例、铅类有11例），其馀4例为非金属类（玻璃3例，塑胶1例）。