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1.2.2010: Left eye control of I4Control® -  in the case of interest, I4Control® can be standardly adjusted I4Control to control of his left eye. This arrangement is suitable for users with impaired of right eye oculomotor muscles , respectively. other issues that prevent the possibility of using the right eye to control the PC.

The system I4Control^® represents a novel type of computer periphery, which enables control of a personal computer through movement of eyes or head. Since it emulates computer mouse, it provides its user by a unique chance to communicate with all installed SW applications by means of his/her eye movements. The core of the system is a tiny black&white camera the position of which is invariable with respect to head of the user of the I4Control^® system - this is achieved by fastening the camera to the frame of spectacles he/she is wearing. This solution does not require fixing the head - the user can move "freely" without any restrictions.

The camera records and evaluates on-line position of the user's eye: when the eye is within the stable position it sends over the signal "stop", otherwise the signal "proceed in the same direction" is generated. As long as the eye is outside of its stable position, the system repeats all the time the same signal, which moves the computer cursor in the direction corresponding to the present position of the eye with respect to the placement of the camera. The cursor can be stopped, of course: the corresponding signal is blinking and it emulates click or double-click. Both signals are activated by keeping the eye closed for sufficiently long period (the corresponding time parameter can be set individually to filter out spontaneous blinking).

The main advantages of the system are simple installation and usage, mobility as well as universality of the system, which can be connected to any computer through the USB interface. Last but not least merit is a low price of the system.

Communication is ensured through an exchange of information, which can be achieved using different types of communication media. The way a man provides information to a technical system represents a very specific category of communication. Input information is mediated to a technical system through various peripheries, e.g. a keyboard, mouse, light pen or a punch tape for a computer. Whenever there appear some reasons, which restrain human users from using standard peripheries, we are facing a serious problem.

There are some health problems that make usage of a personal computer rather difficult. Namely, this is the case of severe motoric handicaps, which make any sort of manipulation with fine objects impossible. Since grasping any small object becomes a challenge for the corresponding patients they are prevented from utilizing a computer mouse, the basic PC periphery, in a standard way. During the last ten years computers became so frequent and common instruments that one cannot do without them in everyday life. That is why it is necessary to search for new means, which will support man-computer communication.