Now luxury brands like Gucci are using the eye-tracking technology to keep their attention.
Eye-tracking systems are fixed into screens to gather data so the images can be personalised.
Eye-tracking technology looks to be one of the major tropes at CEATEC this year.
Nokia announced it was making a touch-screen microwave that integrates eye-tracking technology and automatic food photography.
He said eye-tracking will most likely accompany several emerging methods of interacting with computers.
Using eye-tracking technology, they were able to capture where on the screen children looked during the entire clip.
In the second part, another 59 subjects, wearing eye-tracking devices, watched short video clips of the problem-solving exercise.
That will be life improving for some but already for thousands of disabled people eye-tracking is proving life changing.
CNN: Watch this space: Eye-control to give technology a new look
There was already speculation then that Apple would launch eye-tracking for the iPhone.
FORBES: Apple Turning From Innovator To Fast Follower Before iPhone 5S
An eye-tracking device allowed me to spot Wally in a Where's Wally book - and the page flipped over.
The REX allows your machine to accomplish a specific set of eye-tracking gestures, including scrolling, zooming and selecting items.
ENGADGET: Hands-on with Tobii REX, a peripheral that brings eye-tracking to any Windows 8 PC (video)
Eye-tracking may also have a more substantial presence within select laptops and desktop computers, bringing additional cameras into the picture.
At the heart of the system is eye-tracking software, making this agreement central to the future of display and user interaction.
But there are limitations to the usefulness of eye-tracking on its own.
Using state-of-the-art driver eye-tracking and 3-D hand-gesture recognition, HCD-14 Genesis is able to recognize driver commands free from the distractions associated with manual controls.
ENGADGET: Hyundai unveils HCD-14 Genesis concept: suicide doors, gesture and eye controls
Instead, they all preferred to undercut existing eye-tracking devices by 10%.
"Within a couple of years we'll see eye-tracking in consumer products, like consumer computing and cars, " says Jenny Grant, strategic business development manager for Tobii Technology.
CNN: Watch this space: Eye-control to give technology a new look
From what I can tell there is no trace of any market leader in eye-tracking being a partner of Samsung, which points to an in-house, lab-based solution.
Once a specific feature is selected via eye-tracking, thumb controls or gesture recognition can be used to select navigation, infotainment, audio, HVAC, and even smartphone connectivity functions.
ENGADGET: Hyundai unveils HCD-14 Genesis concept: suicide doors, gesture and eye controls
HCD-14's innovative eye-tracking and gesture-based controls reduce typical driving distractions, resulting in a more focused driver able to better appreciate the day-to-day satisfaction of exceptional vehicle dynamics.
ENGADGET: Hyundai unveils HCD-14 Genesis concept: suicide doors, gesture and eye controls
When it came to the eye-tracking iteration of Portal 2, the new controls apparently worked well, but also necessitated separating aiming and viewpoint to ensure it worked.
For years eye-tracking has been used by retailers to find out what customers look at in their stores and what parts of a website are the most eye-catching.
CNN: Watch this space: Eye-control to give technology a new look
This small USB peripheral, just slightly thicker than a pen, attaches to the base of any computer display, allowing it to bring eye-tracking technology to any Windows 8 machine.
ENGADGET: Hands-on with Tobii REX, a peripheral that brings eye-tracking to any Windows 8 PC (video)
However, while he can see its popularity for disabled or elderly people, Faisal remains uncertain about whether cheap eye-tracking devices are ready to take over from the mouse and touch-screen computers.
It is getting consumers to want to use eye-tracking.
CNN: Watch this space: Eye-control to give technology a new look
Hours after releasing its latest teaser video for the Galaxy S4 come rumors that the next big thing, as Samsung likes to bill it, will have eye-tracking software for scrolling through content.
FORBES: Samsung Adds Eye Scrolling Software To Galaxy S4 Slate
The original grand vision of Tobii's founders was to put eye-tracking technology into every computer, but there are some that wonder if eye-tracking might be the next Bluetooth, useful but not widely used.
CNN: Watch this space: Eye-control to give technology a new look
The two-year-old startup, which is headquartered in Stockholm and has offices in New York and Shanghai, uses eye-tracking technology to gauge the effectiveness of print and online ads, packaging designs and website and store layouts.
FORBES: Eye-Tracking Study Finds iPhone, iPad Draw More Attention Than Android Devices
The expectation the S4 will feature eye-tracking capability has been heightened by existing technology in the Galaxy S3 - the phone's Smart Stay function stops the screen from dimming when somebody is looking at it.
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