| abstract |
compositions and methods for the production of silicone hydrogel contact lenses. Compositions, such as lens precursor compositions, and methods for producing lens precursor compositions have been invented. The present methods include forming a premix composition, which may include one or more monomeric components, forming a macromer composition, which includes one or more silicone-containing macromers, forming a premix / initiator composition which may be including a photoinitiator, and contacting the premix / initiator composition with the macromer composition to form a polymerizable monomer-containing composition useful in producing hydrogel silicone contact lens production. |