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US 5,528,322 AGranted
Polymerizable yellow dyes and their use in ophthalmic lenses
AssigneeAlcon Laboratories, Inc.
InventorDavid L. Jinkerson
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Abstract
Novel polymerizable yellow dyes are disclosed. Additionally, novel and known dyes are used to block or lower the intensity of blue light transmitted through ocular lenses and other windows.
Claims2
An ophthalmic lens coating material 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=H or CH.sub.3 ;
- R.sup.1 =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 ;
- a and b independently=the integer 1 or 2;
- R.sup.2 =R.sup.1, OH, NH.sub.2, NHR.sup.5, N(R.sup.5).sub.2, SH, SR.sup.5, OR.sup.5, OSi(R.sup.5).sub.3, or Si(R.sup.5).sub.3 ;
- R.sup.4 =an acyclic organic spacing group of up to 10 atoms consisting of C, H, Si, O, P, S, Cl, Br or F, alone or in any combination;
- X=O, NH or NR.sup.5 ;
- R.sup.5 =C.sub.1 to C.sub.10 alkyl;
- d, e, g, and h independently=an integer from 0 to 4;
- and
- c and f independently=an integer from 1 to 4.
6 more elements
A method of making blue-light blocking intraocular lenses which comprises the step of
- applying a lens-coating material containing a polymerizable yellow dye of the formula ##STR12## wherein R=H or CH.sub.3 ;
- R.sup.1 =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 ;
- a and b independently=the integer 1 or 2;
- R.sup.2 =R.sup.1, OH, NH.sub.2, NHR.sup.5, N(R.sup.5).sub.2, SH, SR.sup.5, OR.sup.5, OSi(R.sup.5).sub.3, or Si(R.sup.5).sub.3 ;
- R.sup.4 =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;
- X=O, NH or NR.sup.5 ;
- R.sup.5 =C.sub.1 to C.sub.10 alkyl;
- d, e, g, and h independently=an integer from 0 to 4;
- and
- c and f independently=an integer from 1 to 4;
- to the ophthalmic lens.
8 more elements
Dependencies are inferred from the claim text.