IXI’s autofocusing lenses are almost ready to replace multifocal glasses

> IXI’s glasses are designed for age-related farsightedness, a condition that affects many, if not most people over 45. They combine cameraless eye tracking with liquid crystal lenses that automatically activate when the glasses detect the user’s focus shifting. This means that, instead of having two separate prescriptions, as in multifocal or bifocal lenses, IXI’s lenses automatically switch between each prescription. > Using infrared with just a "handful of analog channels" takes far less power than the millions of pixels and 60-times-per-second processing required by camera-based systems. IXI’s system not only tracks eye movements, but also blinking and gaze direction, while consuming only 4 milliwatts of power.