Students may be checked for 'invisible gadgets'

If previously the main issue was smartphones and smartwatches, now 'invisible' earbuds, smart glasses, and other gadgets that are almost impossible to notice are taking the stage.

Some devices are capable of projecting text directly onto the lenses of glasses, allowing students to receive hints literally in front of their eyes during an exam.

Regulators fear that such technologies could turn an honest knowledge test into a competition between devices.