Optic Nystagmus and Its Value in the Localization of Cerebral Lesions

Optokinetic Nystagmus in Brain Lesions

“…The optokinetic nystagmus was, however, quite normal for both directions of rotation. Similar cases have been reported (6, 13,28).…”

“…Optokinetic nystagmus can often be elicited even in drowsy patients (13). In the following case a clear disturbance of nystagmus was recorded, though the patient was disoriented, drowsy and inattentive.…”

“…In case 8 in the series of Fox and I-Iolmes Frontal lesions sometimes disturb optokinetic nystagmus, also in these the disturbance appears when the objects move towards the side of the lesion (12,13,20). In the present material a case with a lesion in the left frontal eye field is included.…”

Clinical Observations of Optokinetic Hypernystagmus

“…On the OKN in cases with central scotoma, Fox and Holmes (1926), Ohm (1931) and more recently Isiguro (1959) and Yoshida" (1971) stated that there were no significant difference between the OKN in normal subjects and that in their clinical cases. From our observations, one case with macular degeneration showed a OKHN in the number of nystagmus beats but the other showed a normal OKN.…”

A Method for Investigation of Ocular Dominance Based on Optokinetic Nystagmus

“…Minor differences exist between right-and left-nystagmus even in normal individuals (35). More important are the disturbances which may occur in patients with lesions of the central nervous system (7,15,19,20). Impairment of optokinetic nystagmus may appear when the objects move towards the side of a cerebral lesion, whereas a normal response is elicited when they move towards the sound side.…”