A Swedish company has unveiled a new system to track what users are viewing on a computer screen based on eye movement, San Jose Mercury News reports. Though eye-tracking technology has existed for some time now, it has primarily been used for academic and market research, for example, and has required people to wear special equipment. Tobii Technology plans to build eye-tracking--which beams low levels of infrared light into the user's eye to work in tandem with sensors to track the reflection of the light and gauge a user's point of focus--to the average computer. Still at the prototype development stage, the mainstream system is expected within a few years.
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