The present invention provides an improved LbL-coating process for modifying
the surface of a medical device, preferably an ophthalmic device, more preferably
a contact lens. An LbL coating on a contact lens, which is prepared according to
the process of the invention, can have increased hydrophilicity characterized by
an averaged contact angle of about 80 degree or less, preferably about 50 degrees
or less, while maintaining the desired bulk properties such as oxygen permeability
and ion permeability of lens material.
