Wettable, flexible, oxygen permeable, contact lens containing polyoxyalkylene backone,units, and use thereof

Abstract From the Canadian patent

This invention relates to ophthalmic devices such as contact lenses and, intraocular implants and particularly contact lenses of a polymer containing a backbone containing polyoxyalkylene units possessing a unique blend of properties including a) high oxygen permeability b) good, wettability, c) flexibility and d) optical clarity in the ocular, environment of use. Even the preparation thereof and methods of treating vision defects therewith are disclosed as well as the polymers which are suitable for the respective ophthalmic devices.