Intraocular lens and a polymer composition for making same

An intraocular lens comprising a UV-absorbing optic lens comprising polymethylmethacrylate, 4-alkoxy-2-hydroxybenzophenone or tetraoxybenzophenone as a UV-absorbing material, 4-(2,4-dimethylphenylazo)-5-methyl-2-phenyl-1,2,3-triazole, and dibutylphthalate as a plasticizer, said components being present in the following weight percent ratio:

• ______________________________________ UV-absorbing material 1.65 to 3.0 4-(2,4-dimethylphenylazo)-5- 0.011 to 0.016 methyl-2-phenyl-1,2,3-triazole dibutylphthalate 4.8 to 5.0 polymethylmethacrylate balance ______________________________________
• wherein the lens is made of a material having the following light transmission spectrum in its visible portion at the following wave lengths:
• 400nm--10 to 27 percent of light transmission;
• 420 nm--21 to 37 percent;
• 440 nm--37 to 55 percent;
• 460 nm--52 to 63 percent;
• 480 nm--70 to 78 percent;
• 500 nm--85 to 90 percent;
• and
• 520-650 nm--90 to 95 percent.