正常人泪液中有高浓度的溶菌酶,其作用尚未确定。根据溶菌酶的溶菌性质,通常认为泪液溶菌酶能保护眼球免受细菌感染。虽然对干燥性角膜结膜炎的泪液溶菌酶含量有一些研究,但对其它结膜病的泪液溶菌酶研究很少。沙眼患者泪液溶菌酶含量低。本文研究的目的有两个:(1)研究结膜病中泪液溶菌酶含量是否有改变;(2)在沙眼合并急性细菌性结膜炎者溶菌酶的低含量是否有改变。 Normal tear fluid has a high concentration of lysozyme, its role has not yet been determined. According to the bacteriolytic properties of lysozyme, tear lysozyme is generally considered to protect the eye from bacterial infection. Although there is some research on tear lysozyme content in keratoconjunctivitis sicca, few studies have been conducted on tear lysozyme in other conjunctival diseases. Trachoma patients tear lysozyme content is low. The purpose of this study is twofold: (1) to study whether there is any change of tear lysozyme in conjunctival diseases; and (2) whether there is any change in the low content of lysozyme in trachoma with acute bacterial conjunctivitis.