UV-absorbers for ophthalmic lens materials

1. A 1,4-disubstituted-1,2,3-triazole compound of the formula

where in formula [3]

R 5 is CH 2 ═CH—, CH 2 ═C(CH 3 )—, or

R 6 is H, F, Cl, Br, I, O(CH 2 ) x H, NH 2 , NH(CH 3 ), N(CH 3 ) 2 , CH 3 , CH 2 CH 3 , CH(CH 3 ) 2 , C(CH 3 ) 3 ,

C 6 H 5 , or OC 6 H 5 ;

x is 0-12;

Y is H, CH 3 , or CH 3 CH 2 ;

Z is O, NH, N(CH 3 ), N(CH 2 CH 3 ), or nothing; and

Z′ is O, NH, N(CH 3 ), N(CH 2 CH 3 ), or nothing;

provided that if x is 0, then Z≠nothing and Z′=nothing.

2. An intraocular lens comprising the 1,4-disubstituted-1,2,3-triazole compound of claim 1 .