Abstract
It would be ideal if we could analyze eye movement in three-dimensions in the clinic in the study of visual perception. We have not established the method, however. It is possible to analyze binocular eye movement in three-dimensions using the binocular eye movement measuring apparatus TKK 2901®in theory. We suspect however that some inaccuracy exists. Therefore we made a study to test the accuracy in the apparatus. As a result, we arrived at the following conclusions.
We have interpreted that fixation point means the center of attention as before. After we examined the fixation point in three-dimensions however we found a difference between the calculated number and the measured number of fixation points. We therefore found that the fixation point means the direction of one's visual axis in some cases.
