Portable eye tracking device

A method for causing an action to be performed by a device, comprising:

• causing an illuminator to illuminate at least a portion of an eye of a user;
• receiving image data representing images of at least a portion eye of the user;
• determining at least one gaze direction of the user based at least in part on the image data;
• determining whether at least one of the gaze direction or the image data meets a condition;
• and
• causing a first action to be performed by a device based at least in part on a determination that at least one of the gaze direction or the image data meets the condition.

A system for causing an action to be performed by a device, wherein the system comprises:

• an illuminator;
• an image sensor;
• and
• a device configured to at least:
• cause the illuminator to illuminate at least a portion of an eye of a user;
• receive image data from the image sensor representing images of at least a portion eye of the user;
• determine at least one gaze direction of the user based at least in part on the image data;
• determine whether at least one of the gaze direction or the image data meets a condition;
• and
• cause a first action to be performed by the device based at least in part on a determination that at least one of the gaze direction or the image data meets the condition.

A non-transitory machine readable medium having instructions stored thereon for causing an action to be performed by a device, the instructions executable by at least one processor to at least:

• cause an illuminator to illuminate at least a portion of an eye of a user;
• receive image data from an image sensor representing images of at least a portion eye of the user;
• determine at least one gaze direction of the user based at least in part on the image data;
• determine whether at least one of the gaze direction or the image data meets a condition;
• and
• cause a first action to be performed by a device based at least in part on a determination that at least one of the gaze direction or the image data meets the condition.