A calibration method for an eye tracker provides for the defining of at least one first region of attraction of a first image to be displayed to a user； acquiring a first sequence of data relative to the eye movement of a user who is looking at the first image by means of an eye tracker； calculating at least a plurality of first calibration positions by means of respective calibration functions on the basis of a first gaze determined from the first sequence of data relative to eye movement； assigning a first score to each calibration function on the basis of the respective first calibration position and the first region of attraction and selecting one of the calibration functions on the basis of the score.
