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Alternative computer input devices; head operated

This section includes controls operated by head movement or eye gaze.

Head operated mouse controllers use slight head movements to move the pointer across the screen or to select buttons on a keyboard. This is usually done using a reflective dot placed on the user's forehead or by the wearing of a cap, pair of glasses, or laser pointer. A switch might be used with the head operated mouse to give the equivalent of a mouse click, or alternatively software can be programmed to simulate a mouse click when the pointer stops moving.

Eye operated systems have a built in camera that detects where the user's eyes are looking, so they can highlight something on the screen simply by looking at it. To select the area they look at the object for a specified length of time or blink or press a switch to select the cell they are looking at.

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