Retailers want to know if you’ll pay more than the next person for the same goods and services. And they’ll use data on ...

CES 2026 showcased AI technologies that track health, memory, focus, and emotion in unsettlingly personal ways.

IXI’s autofocus smart glasses aim to refocus your prescription in real time using eye tracking and liquid-crystal lenses.

Scientists have successfully demonstrated a low-cost, self-powered eye-tracking technology that is powered by the friction of ...