FIELD: physics.
SUBSTANCE: invention relates to the compound of the general formula
,
which is a polymerisable UV-absorbing colouring monomer having excellent stability under alkaline conditions and being a suitable polymer material for the intraocular lens. In the formula (1) R1 represents a hydrogen atom, R2 represents a hydrogen atom, a hydroxy group or an alkoxy group having from 1 to 4 carbon atoms, and R3 is represented by the formula
,
where R4 represents a hydrogen atom or a methyl group and R5 is an alkylene group having from 1 to 4 carbon atoms. The invention also relates to the polymer containing the said compound and the intraocular lens based thereon.
EFFECT: increased stability.
5 cl, 3 dwg, 14 ex
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