| 摘要 |
This invention relates to ophthalmic devices, such as contact lenses and intraocular implants, and particularly contact lenses of a block copolymer containing polysiloxane and polyoxyalkylene oxide units possessing an advantageous blend of desirable properties including a) high oxygen permeability, b) good wettability, c) flexibility and d) optical clarity, in the ocular environment of use. Further disclosed are the preparation thereof and methods of treating vision defects therewith as well as the polymers which may be used for the ophthalmic devices. |
