The present invention addresses the problem of providing an eyeglass lens that has excellent UV absorption properties and low yellowness. This eyeglass lens is produced using a resin composition that contains m-xylylene diisocyanate, a polythiol compound, and a UV absorber. The UV absorber contains at least a compound represented by formula (1) and a compound represented by formula (2). The M value represented by formula (X) is greater than 1.40 but less than 3.20.