Study the different level of eye movement based on electrooculography (EOG) technique

Electrooculography (EOG) is a measurement technique of the electrical potential between electrodes placed near to the skin that used to investigate human eye movements. This technique can be used as the communication tools especially in human computer interface (HCI) such as the wheelchair motion. The aims of this paper to study the different strength level of eye movement can give the different reading of eye movement signal. Due to the eye movement can be controlled to some degree and track by modern technology with a great speed and precision, it also can be used as a powerful input of device. In this project, the EOG eyeglasses module was used as a reference for eye gaze direction. This module was be attached with the Ag/AgCl electrodes in order to get the EOG signals. EOG circuit was designed using TLC 274 JFET-Input operational amplifier that consists of high pass filter and low pass filter in order to acts as an amplifier. There are a pairs of Ag/AgCl electrodes were attached near to the skin surface for the vertical position. The eye movements was produced the signals and then transmitted to the EOG circuit which subsequently filters and amplifies it. As a result, the readings of eye movement were displayed on the oscilloscope. In this experiment, there are three (3) readings were taken with the three different levels of strength eye movement. There are also involved five subjects (3 males and 2 females) in conducting this project.