CPC C09K 11/06 (2013.01) [C09B 23/105 (2013.01); G02C 7/04 (2013.01); C09K 2211/1007 (2013.01); G02C 2202/16 (2013.01)] | 14 Claims |
1. A contact lens, comprising:
at least one color changeable region, wherein the color changeable region comprises at least one photoluminescence material;
wherein a weight percentage of the photoluminescence material in the contact lens is WP, an average transmittance in a wavelength range of 400 nm-700 nm of the color changeable region is T4070, an average transmittance in a wavelength range of 280 nm-400 nm of the color changeable region is T2840, and the following conditions are satisfied:
0.01%≤WP;
85%≤T4070; and
T2840≤20%.
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