A new ophthalmograph which corrects the biases of optical system has been devised at the Kyoto University Audio visual Communication Laboratory. In this Laboratory, there are two kinds of ophthalmographs, Several photo-prints of eye movement taken by them are shown here. Many applied-researches have been done in this field; but here we shown only those prints which were produced by way of trial. Many cases of individual differences in eye movement were illustrated. Applying the specific characteristics of eye movement, a trial product of oculo-optical switch and its future possibilities were discussed.