ELECTRICAL RECORDINGS OF NORMAL AND ABNORMAL EYE MOVEMENTS MODIFIED BY DRUGS

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Abstract
MOST DESCRIPTIONS of eye movements are based on direct observation. The unaided eye, however, cannot always discriminate the to-and-fro ocular movements which occur in nystagmus. Moreover, verbal description, no matter how elaborate, cannot convey the subtle character of some of these ocular excursions, particularly their frequency. For an accurate description, the eye movements must be graphically recorded. Recordings of eye movements have been made for many years. Most of the methods, however, are cumbersome, complicated, or uncomfortable for the patient, and they do not lend themselves readily to clinical research. A method which is easy and needs only equipment ordinarily available in a hospital is one based on electrical recording. The purpose of this study is to describe eye movements, particularly those of nystagmus, by means of electrical recording. Normal and abnormal eye movements have been studied. Furthermore, since it is known that intravenous injections of barbiturates influence eye movements

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