| 摘要 |
It is an object of the present invention to provide an ophthalmic lens characterized in that it is capable of developing a color at a position where a light is irradiated, and to provide a marking method of the ophthalmic lens. It is another object of the present invention to provide an ophthalmic lens, which can form a clear and easily readable mark, without causing problems such as discoloration of the mark, caused by cleaning of the lens by rubbing, or deterioration of the mechanical strength of the lens, and to provide a marking method of the ophthalmic lens. The ophthalmic lens of the present invention is obtained by a polymerization of a polymerizable composition of monomers, which contains an alkyl (meth)acrylate as an essential polymerizable component, and this polymerization is carried out while the rhodamine derivative is present in the composition.
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