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细菌粘附于人工晶体表面可成为白内障人工晶体术后眼内炎的原因。本研究通过体外实验用光镜、电镜观察了表皮葡萄球菌、金黄色葡萄球菌、绿脓杆菌在聚甲基丙烯酸甲酯（ＰＭＭＡ）人工晶体组（对照组）、ＰＭＭＡ人工晶体加肝素溶液组（加药组）和肝素表面处理人工晶体组（ＨＳＭ组）的细菌粘附，发现加药组及ＨＳＭ组人工晶体细菌粘附数明显少于对照组（Ｐ＜０．０１）。肝素抑制细菌粘附是由于在细菌与人工晶体表面产生一个疏水层，因此，肝素可减少人工晶体术后眼内炎的发生
Bacterial adhesion to the surface of intraocular lens can be the cause of intraocular lens inflammation after cataract surgery. In this study, Staphylococcus epidermidis, Staphylococcus aureus and Pseudomonas aeruginosa were observed by light microscopy and electron microscopy in polymethylmethacrylate (PMMA) artificial lens group (control group), PMMA artificial lens plus heparin solution group (P <0.01). The results showed that the number of bacterial adhesion of the IOL group and the HSM group was significantly less than that of the control group (P <0.01). Heparin inhibits bacterial adhesion due to a hydrophobic layer on the surface of bacteria and intraocular lenses, so heparin can reduce the incidence of endophthalmitis after intraocular lens surgery