Polymerizable composition for optical material, optical material, and use thereof

A polymerizable composition for an optical material, the composition comprising:

• (A) an isocyanate compound;
• (B) at least one active hydrogen compound selected from a polythiol compound having two or more mercapto groups;
• and
• (C) an ultraviolet absorber represented by General Formula (2),
• wherein, in General Formula (2), R1 and R2 represent an alkyl group having 1 to 8 carbon atoms, and may be the same or different, a plurality of R1's or a plurality of R2's may be the same or different, m represents an integer of 0 to 3, n represents an integer of 0 to 3, R4 represents a hydrocarbon group having 1 to 3 carbon atoms, and R5 represents a hydrocarbon group having 1 to 3 carbon atoms;
• wherein the ultraviolet absorber (C) is 3-[3-tert-butyl-5-(5-chloro-2H-benzotriazol-2-yl)-4-hydroxyphenyl]methylpropionate;
• wherein a content of the active hydrogen compound (B) in the polymerizable composition for an optical material is 30 parts by mass or more and 70 parts by mass or less in 100 parts by mass of the polymerizable composition for an optical material;
• wherein the ultraviolet absorber (C) is included in an amount of 1.5 to 2.0 parts by mass in 100 parts by mass of the polymerizable composition for an optical material.