The EOG in unilateral eye disease: injuries.

In unilateral injuries, the tap to the eye by a penetrating foreign body is sufficient to depress the electro-oculogram (EOG). Total recovery is time-consuming. During the recovery period, complications such as siderosis and detachment may arise, acting with predilection on the light-sensitive EOG component. Blunt traumata and possibly surgical opening of the eyeball predominantly decrease the light-insensitive component of the EOG.