Fixation nystagmus, by which we mean nystagmus that results from fixing intently for some time on an object at rest, whether situated far or near, directly ahead or at an angle, is extremely rare. We have been unable to find reports of any such cases in either the English or the American literature. However, a few such cases have been mentioned by the Germans, and the subject was briefly discussed by Spiegel and Sommer,1 Wilbrand and Saenger,2 Brückner,3 Oppenheim4 and Fuchs.5
Voluntary nystagmus, on the contrary, while relatively rare, has been discussed for a long period of time, and to date there are over thirty cases which have found their way into the literature of the various countries. This condition is understood to be the production of a nystagmus by will power alone, that is, by concentrating on the idea and desiring the eyes
LUHR AF, ECKEL JL. FIXATION AND VOLUNTARY NYSTAGMUS: A CLINICAL STUDY. Arch Ophthalmol. 1933;9(4):625–634. doi:10.1001/archopht.1933.00830010647011
Artificial Intelligence Resource Center
Customize your JAMA Network experience by selecting one or more topics from the list below.