Binder of energized components in an ophthalmic lens

摘要

This invention discloses methods and apparatus for providing an ophthalmic lens with an energy source incorporated therein.

主权项

1. A method of forming an energized contact lens, the method comprising:
preparing a binder material having a viscosity of from about 4,000 to about 15,000 centipoise; applying a binder layer of the binder material to a first mold part; pre-polymerizing the binder layer to create tackiness; positioning an energy source onto the binder layer applied to the first mold part thereby holding the energy source in position within the first mold part during formation of the energized contact lens; depositing a reactive mixture into the first mold part; placing a second mold part proximate to the first mold part forming a cavity therebetween with the energy source held in place by the binder within the cavity; and polymerizing the reactive mixture to form an energized contact lens comprising polymerized lens reactive mixture and a binder layer at least partially in contact with the energy source.