Eye movement and blink analysis has achieved its peak technology and less expensive. With the availability of high speed processors and inexpensive webcams , more and more people have become interested in real time applications that involve image processing .one of the promising field in artificial intelligence is HCI(Human Computer Interface ) which aims to use human features (e.g. face, hands) to interact with the computer. One way to achieve that is to capture the desired feature with a webcam and monitor its action in order to translate it to some events that communicate with the computer With the growth of attention about computer vision, the interest in HCI has increased proportionally. There are different human features and monitoring devices used to achieve HCI. In this project we were interested only in works that involved the use of facial feature Eye and webcam. We notice a large diversity of the facial features are selected and the way are detected and tracked, and the functionality that they presented for the HCI.