An improved structure of an artificial electronic retina is disclosed, which includes an array of a plurality of photoelectric units, and each photoelectric unit includes one electronic photosensitive element, one microelectrode, and one electronic circuit, wherein the microelectrode is disposed on and electrically connected to the electronic photosensitive element, and the electronic circuit is disposed on a circumference of the electronic photosensitive element. A layer of a light-permeable conductive material is disposed on and electrically connected to the electronic photosensitive element, wherein the layer of the light-permeable conductive material is also electrically connected to the microelectrode. Therefore, the input and output power of the electronic photosensitive element can be increased without reducing the photosensitive area of the electronic photosensitive element. Even the area of the microelectrode can be reduced in order to increase the photosensitive area.
