This system is set up to work on the control of the computer with the help of an eye. This hardware and software system developed by researchers from Imperial College London ( UK ).The system works quite simply. The equipment, called a brief GT3D , tracks the position of pupil rights, which the user PC. Depending on how this situation changes, move the cursor around the screen, and even turned over pages of typed text (of course, with the virtual keyboard). Press the button is quite simple – you need to blink an eye – right or left, depending on the team.By blinking the same experts have decided to give up, because this process is natural, which would entail the false signals. The system consists of a miniature set. This includes fast camcorder, mount points & camera fixed to the rim. On the same computer commands are transmitted through the connection Wi-Fi, or USB port. The final component of GT3D is a special software.