Patent ID: 7138440

Claim:
A method of producing ophthalmic devices from a polymeric composition, said method comprising: casting said polymeric composition in the form of a rod; lathing or machining said rod into disks; and lathing or machining said disks into said ophthalmic devices; wherein said polymeric composition is a polymerization product of a siloxysilane monomer that has a formula of wherein R is a polymerizable group; X is selected from the group consisting of C 1-10 alkylene, C 1-10 alkyleneoxy, C 6-36 arylene and C 6-36 aryleneoxy; the R 1 groups are the same or different selected from the group consisting of C 1-10 alkyl, C 1-20 cycloalkyl, C 6-36 aryl, C 6-36 aryl ether, C 6-36 heterocycle, C 6-36 heteroycle with one or more substituents, C 1-10 alkyl ether and C 6-36 aryloxy; and each of u and z is an independently chosen integer, and 1≦u, z<20.