COLORANT COMPOSITION FOR COLORED SILICONE HYDROGEL CONTACT LENSES, COLORED SILICONE HYDROGEL CONTACT LENS COMPRISING THE SAME, AND METHOD OF MODIFYING COLORANT FOR COLORED SILICONE HYDROGEL CONTACT LENSES

摘要

To provide a colorant composition which improves adhesion of a colorant to a surface of a silicone hydrogel contact lens and enhances hydrophilicity and biocompatibility.SOLUTION: A colorant composition is provided, comprising a polydimethylsiloxane, at least one hydrophilic monomer and a polydopamine-modified colorant. The polydimethylsiloxane is represented by a predetermined chemical formula and the content thereof is 30 to 65 wt.% relative to a total weight of the colorant composition. The hydrophilic monomer is one or a combination selected from a group consisting of N-vinylpyrrolidone, 2-hydroxyethyl methacrylate, etc.SELECTED DRAWING: None