1. A method comprising: displaying an object on a display of a computing device in communication with an eye tracking device, the object being associated with a calculation of calibration parameters relating to a calibration of a calculation of gaze information of a user of the computing device, the gaze information indicating information about where the user is looking; while the object is displayed, receiving, from the eye tracking device, an image of at least one eye of the user; determining eye information associated with the user, the eye information being based on the image and relating to eye features associated with the at least one eye of the user; and calculating one or more of the calibration parameters and one or more geometry parameters based on the eye information, the one or more geometry parameters indicating information associated with the display relative to the eye tracking device.