PROBLEM TO BE SOLVED: To improve operability by setting an operation object of a size corresponding to the characteristic of each individual.SOLUTION: A medical system includes a display control part for displaying a visual line operation screen having a button display for an operation in a display part, a visual line measurement part for detecting a visual line to the display part to output a detection result, a controller which can control an apparatus to be controlled on the basis of the detection result of the visual line measurement part, and an information processing part for acquiring a deviation in the visual line on the basis of the detection result of the visual line measurement part, and setting a detection effective size corresponding to the size of the acquired deviation in one to one to the lower limit of the size of the button display for an operation.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT
