Problem to be solved: to provide an artificial retina capable of maintaining a high absorbance for a long period of time in an artificial retina in which an organic dye compound is chemically coupled to the surface of a sheet of polyethylene sheet material which is capable of inducing a photoreceptor potential depending on the light stimulus.Solution: the artificial retina formed by binding the organic dye compound to the polymer sheet in which the carboxyl group is introduced by the smoking nitric acid treatment and the diamine is modified to the carboxyl group.No selection【課題】薄膜状としたポリエチレン製シート状基材の表面に光刺激に応じた受容器電位を誘発する有機色素化合物を化学結合させた人工網膜において、高い吸光度を長期間維持可能である人工網膜の提供。【解決手段】発煙硝酸処理を行うことで表面にカルボキシル基を導入するとともに、このカルボキシル基にジアミン修飾を行った高分子シートに、下記有機色素化合物を結合させて成る人工網膜。【選択図】なし