Polymerizable yellow dyes and their use in ophthalmic lenses

A polymeric intraocular lens comprising:

• one or more monomers selected from the group consisting of acrylate and methacrylate monomers, and
• one or more polymerizable yellow dyes of the formula ##STR11## wherein R' and R" independently=H or CH.sub.3 ;
• R.sup.6 and R.sup.7 independently=H, C.sub.1 to C.sub.20 alkyl, OCH.sub.3, OC.sub.2 H.sub.5, OC.sub.3 H.sub.7, or OC.sub.4 H.sub.9 ;
• R.sup.8, R.sup.9, R.sup.10 and R.sup.11 independently=an acyclic organic spacing group of up to 10 atoms consisting of C, H, Si, O, N, P, S, Cl, Br or F, alone or in any combination;
• i and j independently=the integer 1 or 2;
• k and m independently=an integer from 1 to 6;
• n and l independently=an integer from 0 to 6;
• X=O, NH, NR.sup.5 ;
• R.sup.5 =C.sub.1 to C.sub.10 alkyl.