This composition for a contact lens includes polyvinylpyrrolidone having a K value in the range 10-60. The contact lens is a soft contact lens classified as group II under the classification of soft contact lenses in accordance with US Food and Drug Administration (FDA) standards.提供一種無需進行複雜處理即能夠抑制蛋白質吸附於隱形眼鏡上的隱形眼鏡用組成物。本發明是一種含有K值為10~60的聚乙烯氫吡咯酮的隱形眼鏡用組成物,隱形眼鏡被分在按照美國食品藥物管理局(FDA)基準進行的軟式隱形眼鏡分類中組II裡。