With a binocular stereoscopic 3D display system, one of the major problems in stereoscopic 3D display is the mismatch of distance between the accommodation and convergence of human eye. Therefore, from a dynamic characteristic of accommodation response, we considered whether a binocular stereoscopic 3D display system is sultable or not. Experiments were conducted to understand how the stereoscopic 3D images influence human visual functions. Concretely, we compared an accommodation distance and a convergence distance, accommodation of a genuine article and a stereoscopic 3D display.