The present invention provides a medical device, preferably an ophthalmic device,
more preferably a contact lens, which comprises a lubricious coating including
a capping layer of polyvinylpyrrolidone and/or at least one layer of a lubricious
coating material and one layer of a polyionic material having charges opposite
of the charges of the lubricious coating material. The lubricious coating on the
medical device of the invention has increased lubricity, preferably characterized
by an averaged CoF of about 3.0 or less, increased hydrophilicity characterized
by an averaged contact angle of about 80 degree or less, and increased bacterial
adhesion resistance, while maintaining the desired bulk properties such as oxygen
permeability and ion permeability of lens material. Such lenses are useful as extended-wear
contact lenses. In addition, the invention provides a method for making a medical
device, preferably a contact lens, having a lubricious coating thereon.