Contact lens containing a fluorinated telechelic polyether

Claim 1

An ophthalmic device selected from the group consisting of a contact lens and a corneal implant and comprising a polymer of a telechelic perfluoropolyether having a backbone of perfluorooxyalkylene units, a number average molecular weight between about 500 and 15,000, and at least one polymerizable ethylenically unsaturated group wherein said telechelic perfluoropolyether has the formula Q--X--Y--C k F 2k O) p (C q F 2q --Z wherein p represents the number of --C k F 2k O-- subunits in said backbone and is an integer of from 3 to 200, q is an integer of from 1 to 4, and k may be the same of different within each of said --C k F 2k O-- subunits and is an integer of from 1 to 4 wherein Q is selected from ##STR18## wherein R is selected from hydrogen or methyl; wherein X is selected from (E) a covalent bond, ##STR19## wherein R 1 is selected from a divalent aliphatic group having from 2 to 14 carbon atoms, a divalent 5- or 6-membered cyclic group having from 5 to 14 carbon atoms, or an arylene group having from 6 to 14 carbon atoms, and a in an integer of from 2 to 12; wherein Y is selected from (J) --CH 2 ) b , ##STR20## wherein R 2 is a lower alkyl group having 1 to 4 carbon atoms, a is an integer of from 2 to 12, and b is an integer of from 1 to 12; provided that when (1) Q is (A), then X is selected from (E), (F), or (G) and Y is selected from (J), (K), or (L); (2) Q is (B), then X is selected from (E), (F), or (G) and Y is selected from (J), (K), or (L); (3) Q is (C) then either (i) X is (E) and Y is (M), or (ii) X is selected from (E), (F), (G), (H), or (I) and Y is selected from (J), (K), or (L); and (4) Q is (D) then either (i) X is (E) and Y is (M), or (ii) X is selected from (H) or (I) and Y is selected from (J), (K), or (L); and wherein Z is selected from --OC k F 2k+1 , or Q--X--Y-- wherein Q, X, Y and k are as defined above.