Adaptive shading adjustment in optical apparatuses

A method implemented by an optical apparatus comprising an optical element per eye, a light-control element arranged on an optical path of light passing through the optical element, at least one light sensor, and at least one processor, wherein the method comprises:

• processing tracking data, collected by at least one of:
• an eye-tracking means of the optical apparatus, an eye-tracking means of an external device, a face-tracking means of the external device, for determining at least one of:
• a gaze position, a gaze direction, a gaze velocity, a gaze acceleration, per eye of a user;
• determining a current visual task in which the user is engaged selected from at least one of:
• reading text, focusing on an object or a part of the object, casual glancing, distance viewing, viewing an image or a video on a display;
• processing sensor data, collected by the at least one light sensor, for determining an ambient light intensity in an environment where the optical apparatus is being used;
• determining a shading intensity of a level of tint or darkness to be used for the optical element, based on the ambient light intensity and the current visual task of the user;
• and
• controlling the light-control element for applying the shading intensity to the optical element.