Soft contact lens polymers: an evolution

被引:559
作者
Nicolson, PC [1 ]
Vogt, J [1 ]
机构
[1] CIBA Vis Corp, Lens Business Unit Res & Dev, Duluth, GA 30097 USA
关键词
contact lens; polymer; hydrogels; siloxane hydrogels; phases; macromer;
D O I
10.1016/S0142-9612(01)00165-X
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
A review of patents and literature reveals an evolution in materials technologies. The evolution has been driven by an increased understanding of the physiological needs of the cornea, beginning with the first hydrogel lenses developed by Wichterle, followed by a variety of high water hydrogels. Oxygen transmission requirements have been addressed through the use of siloxane and fluorosiloxane containing hydrogels. An important development has been the appreciation of the importance of polymer phase morphology on lens movement on the eye. In parallel with these activities have come the advancements in materials suitable to high volume, low cost production necessary for today's daily disposable lenses. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:3273 / 3283
页数:11
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