Electrooculography is the name of an electrical
technique for recording movements of the eye.
Electrooculography is used to record an "electrooculogram"
(or "EOG" for short) by attaching small
electrodes to the skin around the eye. These may be attached at the inner-
(closest to the nose) and outer- (closest to the nearest ear) corners
of the eye.
The electrical potential between the two electrodes when the eye is at
rest (i.e. not moving) gives useful information about the retina.
When the eye moves the electrical potential between the electrodes changes
and may be recorded continually over a period of time. This method can
therefore be used to record and study how movements of the eye vary over
a set period of time.
There are various reasons for studying eye movements, some for clinical
purposes and others for more general research into "Human Factors"
and the psychology of visual perception and its many practical applications.
This section includes short definitions of clinical and surgical procedures
concerning the eyes and human visual system. For definitions of other
terms in this category, choose from the list to the left. Other related
pages include the diagram
of the eye, and definitions
of parts of the eye, a description
of the human retina, and the section about disorders
of the eye and visual system. |
