Vertical component of caloric nystagmus in cases with servere canal paresis (CP).
نویسندگان
چکیده
منابع مشابه
Spatial orientation of caloric nystagmus in semicircular canal-plugged monkeys.
We studied caloric nystagmus before and after plugging all six semicircular canals to determine whether velocity storage contributed to the spatial orientation of caloric nystagmus. Monkeys were stimulated unilaterally with cold ( approximately 20 degrees C) water while upright, supine, prone, right-side down, and left-side down. The decline in the slow phase velocity vector was determined over...
متن کاملOperation on the vertical muscles in cases of nystagmus.
ALTHOUGH it has been recognized for a considerable time that operation on a strabismus co-existing with nystagmus may have a beneficial effect on the nystagmus, it does not appear to have been until 1953 that work was published relating to operation on cases of nystagmus with the direct intention of improving this condition. Then, from three different continents within a short time, separate re...
متن کاملCaloric testing in patients with heavy or light cupula of the lateral semicircular canal
OBJECTIVE To clarify whether the dysfunction of the lateral semicircular canal remain or not in patients with heavy or light cupula. STUDY DESIGN Prospective case series. METHODS The subjects were 19 patients with heavy cupula (3 males, 16 females; mean age, 62.8 years) and 14 patients with light cupula (5 males, 9 females; mean age, 63 years). Caloric testing (iced water) was carried out a...
متن کاملMonocular electronystagmographic analysis of caloric nystagmus.
We compared the horizontal component of nystagmus of the right and left eyes using monocular recording of electronystagmography. We examined the eye movements of 135 patients during bithermal caloric testing and those of 50 patients during the rotation test. We measured the number of nystagmic beats, the slow-phase velocities, and the amplitudes during 10 seconds of the culmination phase of cal...
متن کاملCongenital hereditary vertical nystagmus.
Duke-Elder (1949) states that congenital nystagmus varies considerably in extent, direction, and rapidity of the movements. In most cases it affects both eyes equally, but in a few instances it is uniocular. Typically the movements are pendular in type, horizontal in direction, and do not alter on lateral deviation, although they may then become jerky in type. Sometimes the movement is coarser ...
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ژورنال
عنوان ژورنال: Equilibrium Research
سال: 1989
ISSN: 0385-5716,1882-577X
DOI: 10.3757/jser.48.246