Eye tracker

An eye tracker is a special device that watches where a person looks. This is done by tracking the movement of their eyes as they look at different things.

The eye tracker uses special cameras that follow the movement of your eyes, kind of like how your eyes follow a moving toy. It can tell where you are looking on the screen or in the room.

Some people use eye trackers to help them communicate, like if they cannot talk. They can use the eye tracker to move a cursor on a screen and select what they want to say.

Regular people can also use eye trackers to play video games or do research studies. Eye trackers are very useful because they can tell us where people are looking and for how long, which helps us understand how people think and process information.