A contact lens material which is lipophobic, easily machined and is oxygen permeable which comprises a copolymer comprising from 25% to 50% by weight of a polysiloxanylalkyl ester of acrylic or methacrylic acid, from 40% to 69% by weight of a fluorinated styrene, from 4% to 7% of a hydrophilic monomer,...http://www.google.ca/patents/US5106930?utm_source=gb-gplus-sharePatent US5106930 - Contact lenses
