The variability of fixation suppression of caloric-induced nystagmus.
Twelve normal adults were evaluated to determine their capacity to suppress caloric-induced nystagmus by visual fixation. Fixation suppression (FS) was assessed four times during the routine Fitzgerald-Hallpike caloric procedure. The results were characterized by large inter-subject as well as intra-subject variability. It is cautioned that diagnostic categories should not be inferred on the basis of absolute numeric values of FS.
D000328:Adult; D002150:Caloric Tests; D005260:Female; D005403:Fixation, Ocular; D006801:Humans; D008297:Male; D009760:Nystagmus, Physiologic