With its full head and motion tracking support, the technology is a milestone for real-time gaze interaction with virtual avatars or 3D gaming applications.

ENGADGET: SMI Eye-Tracking 3D Glasses use rim-based cameras to adjust perspective

The best time to gaze at the Moon through a telescope is when it is in a phase that is less than full, when the shadows along the terminator reveal in greatest detail the depression of craters.

WHITEHOUSE: National Mall Opens to Stargazers

The result: 6D gaze vectors on objects are calculated automatically and virtual content can be presented in real-time dependent on the gaze interaction of the user with the environment.

ENGADGET: SMI Eye-Tracking 3D Glasses use rim-based cameras to adjust perspective

Every twenty seconds or so he lifts his head and looks out onto Boulevard Saint-Germain, his gaze a little more gloomy each time.

NEWYORKER: Labyrinth

If they meet our gaze more than two-thirds of the time, we sense that they find us appealing or fascinating.

FORBES: The Impact of Eye Contact

Police officers, many of them on horseback, had a hard time controlling the crowds, as many of the bathers lingered to gaze at the colourful processions of the holy men.

BBC: India's Kumbh Mela festival holds most auspicious day

As it happens, that's the same setup procedure we went through when we tested out Gaze last year, except it felt smoother and less buggy than it did last time.

ENGADGET: Hands-on with Tobii REX, a peripheral that brings eye-tracking to any Windows 8 PC (video)