关于水凝胶材料,一般文献报导多是以甲基丙烯酸甲酯(MMA)为基础的一类聚合物材料。最初的水凝胶材料是聚甲基丙烯酸甲酯(PMMA),从1955年开始用它做接触镜,但用后有痛觉。1975年又改用聚甲基丙烯酸羟乙酯(PHEMA)做接触镜,虽然感觉舒适但易破裂。最近,用加成型硅橡胶做软性活动眼座已有报导。但是,用蓖麻油和甲苯二异氰酸酯(TDI)进行网络改 About hydrogel materials, generally reported in the literature mostly based on methyl methacrylate (MMA) a class of polymer materials. The initial hydrogel material was polymethylmethacrylate (PMMA), which was used as a contact lens since 1955, but with painful sensation after use. In 1975 and use poly hydroxyethyl methacrylate (PHEMA) to do the contact lens, although comfortable and easy to rupture. Recently, the addition of silicone rubber as an active eye patch has been reported. However, the network was modified with castor oil and tolylene diisocyanate (TDI)