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眼震电图(ENG)或称眼电图(Electro-Oculography,EOG)是一种采用记录生物电的方法、研究眼球位移及运动的图象,这种被记录下来并能持久保藏的图象就称眼震电图。眼球有如一个电偶极子,角膜——前极带正电荷;视网膜——后极带负电荷,电轴则与视轴一致,平时角膜视网膜之间存在静息电位,当眼球活动时静息电位改变,眼球周围电场发生变化,将电极置于眼球的邻近地区,就能将角膜～视网膜电位差导出,在一般情况下,电位差可变化于200至1200微
Eye electrogram (ENG) or electro-oculography (EOG) is a method of recording bioelectricity that studies the displacement and movement of the eyeball. This recorded and persistently preserved image Eye electronystagmography is called. The eye is like an electric dipole, the cornea - the front pole is positively charged; the retina - posterior pole is negatively charged, the axis is consistent with the visual axis, usually there is a resting potential between the corneal retina, resting when the eyeball activity Potential changes, changes in the electric field around the eye, the electrode placed in the vicinity of the eye, the cornea ~ retinal potential difference can be derived under normal circumstances, the potential difference can be varied from 200 to 1200 micro