Walsh & Hoyt: Quantitative Analysis of Eye Movements

Most disturbances of ocular motility and alignment can be detected during a standard clinical examination; however, performing a quantitative analysis of eye movements may more accurately reveal subtle abnormalities of the pursuit, saccadic, optokinetic, and vestibulo-ocular systems. The most common methods used to record eye movements are electro-oculography and infrared oculography. These techniques may be used to distinguish myopathic (restrictive) from neuropathic conditions that affect ocular motility and to determine the presence or absence of improvement of ocular motor function. The value of vertical saccadic velocity or amplitude determinations in adduction versus abduction to identify and monitor superior oblique muscle dysfunction remains controversial.