A vision restoration assist apparatus includes an insulating case including a biocompatible body portion and a biocompatible cover portion that are joined to each other to form a storage space in the case, an electrode disposed outside the case, an electronic circuit disposed in the storage space of the case, and a joint layer disposed between joint surfaces of the body portion and the cover portion of the case and formed of a sintered bulk of a predetermined metal powder having an average particle size of 1 μm or less.
