Eagle Eyes is a user assistive technology developed at Boston College. The system allows people who can only move their eyes to operate a computer. It works by measuring the voltage generated by eye muscle movements. Electrodes are placed to the left and right as well as above and below the user's eyes. When the user moves his or her eyes, the electrodes send the readings through amplifiers which, in turn, send it to a computer loaded with tracking software. This software does some computations and then moves the mouse pointer on the screen thereby allowing paralyzed individuals to use the computer for communication and entertainment. Boston College has developed a similar system called the Camera Mouse which uses a camera instead of electrodes.