Our face can unlock a smartphone, provide access to a secure building and speed up passport control at airports, verifying our identity.

Scientists have developed glasses that change focus automatically, depending on what you're looking at.

Researcher leads new study that shows data from smartphone sensors combined with time features can detect a cannabis high.

Using a raised eyebrow or smile, people with speech or physical disabilities can now operate their Android-powered smartphones hands-free.

Created by a team led by Prof. Carlos Mastrangelo these, app controlled, smart glasses feature "liquid lenses" that change shape.