An intraocular lens whose optic or optic and haptic are composed of a substantially soft polymer obtained by curing a composition comprising:
(a) a dimethylsiloxane-phenylsiloxane copolymer having a vinyl group at each of the both terminals of the molecular chain,
(b) a diorganopolysiloxane having at least three hydrosilyl groups in the molecule, and
(c) an U.V. absorber.
The intraocular lens obtained above has good intraocular stability, excellent biocompatibility, high optical properties and an U.V. absorbability closer to that of the human lens.
By further incorporating a filler as the component (d), the intraocular lens has improved mechanical properties and higher intraocular stability.
一种眼内透镜,其光学镜片或光学镜片和触觉镜片由一种基本柔软的聚合物组成,这种聚合物是通过固化由以下成分组成的组合物而获得的:
(a) 二甲基
硅氧烷-苯基
硅氧烷共聚物,其分子链的两端各有一个
乙烯基、
(b) 分子中至少有三个氢
硅基的
二甘醇聚
硅氧烷,和
(c)
紫外线吸收剂。
上述获得的眼内透镜具有良好的眼内稳定性、出色的
生物相容性、较高的光学性能和更接近人体晶状体的紫外线吸收能力。
通过进一步加入填料作为成分(d),眼内透镜具有更好的机械性能和更高的眼内稳定性。