OPTICAL RESIN COMPOSITION AND MOLDED ARTICLE

An object of the present invention is to provide an optical resin composition having excellent transparency and being extremely low in both orientation birefringence and photoelastic birefringence even in a thick molded article such as an injection-molded article, as well as having excellent heat resistance or mechanical properties such as impact resistance including Izod strength; and a molded article of the optical resin composition, particularly an injection-molded article. Provided is an optical resin composition containing a thermoplastic resin and a cross-linked structure-containing polymer, wherein the photoelastic constant of the cross-linked structure-containing polymer and the photoelastic constant of the thermoplastic resin are opposite in sign, and a molded article with a thickness of 2 mm has a haze of 6% or less.