Improved contact lens compositions are achieved through incorporation of a fluorine containing mono or diester of itaconic acid in siloxane polymeric contact lens compositions. Copolymers include components which modify contact lens mechanical, optical and transport properties as well as surface characteristics to achieve at least some compositions having an oxygen permeability of at least DK35 with a refractive index of from 1.35 to 1.5 and a percent hydration below 2 percent of total weight. Contact lenses made of materials of this invention are highly permeable to oxygen and resistant to the deposition of tear components providing extended wear capability through improved biocompatibility.
通过在
硅氧烷聚合物隐形眼镜组合物中加入含
氟的
衣康酸单或双酯,可以改进隐形眼镜组合物。共聚物中的成分可改变隐形眼镜的机械、光学和传输特性以及表面特性,从而使至少某些组合物的透氧率至少达到 DK35,折射率在 1.35 至 1.5 之间,
水合率低于总重量的 2%。由本发明材料制成的隐形眼镜具有很高的透氧性和抗泪液成分沉积性,可通过改善
生物相容性来延长佩戴时间。