A contact lens possessing a wettable surface in its ocular aqueous environment of use fabricated from a hydrophobic addition polymer incorporating between about 0.5 and about 30 % by weight oxirane substituted units in the backbone thereof, wherein the outer surfaces of said lens contain an effective hydrophilicity inducing amount of a reaction product of said oxirane substituted units of the formula I,
wherein R is hydrogen or methyl; R¹ is carbonyl or lower alkylene; n is 1 to 4; and R⁰ is hydrogen or
with a reactive water soluble nucleopile selected from an organic amine, alcohol, thiol, urea or thiourea, or sulfite, bisulfite or thiosulfate and the use thereof by placement in the eye of a patient in need of the same to correct vision defects of a refractive nature.
一种隐形眼镜,其在使用时的眼部
水环境中具有可润湿表面,该隐形眼镜由疏
水加成聚合物制成,在其骨架中含有约 0.5%至约 30%(按重量计)的
环氧乙烷取代单元,其中所述镜片的外表面含有有效亲
水性诱导量的式 I 所述
环氧乙烷取代单元的反应产物、
其中 R 是氢或甲基;R¹ 是羰基或低级亚烷基;n 是 1 至 4;以及 R⁰ 是氢或
与选自有机胺、醇、
硫醇、
脲或
硫脲,或
亚硫酸盐、
亚硫酸氢盐或
硫代
硫酸盐的活性
水溶性核载体的反应产物,并将其置于有需要的患者眼中,以矫正屈光性质的视力缺陷。