A plastic spectacle lens composed of an optical material comprising: a phosphor which has an excitation wavelength in a range from 220 nm to 500 nm, a fluorescence wavelength in a range from 380 nm to 650 nm, a maximum excitation wavelength in a range from 350 nm to 400 nm, and a maximum fluorescence wavelength in a range from 400 nm to 500 nm; and an ultraviolet light absorber, wherein a transmittance of the optical material measured at a thickness of 2 mm satisfies the following features to : The light transmittance at a wavelength of 440 nm is 80% or higher, The light transmittance at a wavelength of 420 nm is 70% or lower, and The light transmittance at a wavelength of 410 nm is 5% or lower; the plastic spectacle lens further comprising: a lens substrate; and optionally a film layer and a coating layer laminated over the lens substrate; wherein at least one of the lens substrate, the film layer and the coating layer is obtained from a composition for an optical material which contains the phosphor having an excitation wavelength in a range from 220 nm to 500 nm, a fluorescence wavelength in a range from 380 nm to 650 nm, a maximum excitation wavelength in a range from 350 nm to 400 nm, and a maximum fluorescence wavelength in a range from 400 nm to 500 nm, the ultraviolet light absorber, and a resin for optical material or a polymerizable compound; and wherein the resin for optical material is a poly (meth) acrylate or a polyolefin; and wherein the polymerizable compound is a combination of a polyisocyanate compound and a polyol compound, a combination of a polyisocyanate compound and a polythiol compound, or a polyepithio compound and/or a polythietane compound. a phosphor which has an excitation wavelength in a range from 220 nm to 500 nm, a fluorescence wavelength in a range from 380 nm to 650 nm, a maximum excitation wavelength in a range from 350 nm to 400 nm, and a maximum fluorescence wavelength in a range from 400 nm to 500 nm; and an ultraviolet light absorber, wherein a transmittance of the optical material measured at a thickness of 2 mm satisfies the following features to : The light transmittance at a wavelength of 440 nm is 80% or higher, The light transmittance at a wavelength of 420 nm is 70% or lower, and The light transmittance at a wavelength of 410 nm is 5% or lower; The light transmittance at a wavelength of 440 nm is 80% or higher, The light transmittance at a wavelength of 420 nm is 70% or lower, and The light transmittance at a wavelength of 410 nm is 5% or lower; the plastic spectacle lens further comprising: a lens substrate; and optionally a film layer and a coating layer laminated over the lens substrate; a lens substrate; and optionally a film layer and a coating layer laminated over the lens substrate; wherein at least one of the lens substrate, the film layer and the coating layer is obtained from a composition for an optical material which contains the phosphor having an excitation wavelength in a range from 220 nm to 500 nm, a fluorescence wavelength in a range from 380 nm to 650 nm, a maximum excitation wavelength in a range from 350 nm to 400 nm, and a maximum fluorescence wavelength in a range from 400 nm to 500 nm, the ultraviolet light absorber, and a resin for optical material or a polymerizable compound; and wherein the resin for optical material is a poly (meth) acrylate or a polyolefin; and wherein the polymerizable compound is a combination of a polyisocyanate compound and a polyol compound, a combination of a polyisocyanate compound and a polythiol compound, or a polyepithio compound and/or a polythietane compound. <EOS>