Examination of the dizzy patient should include a search for neurological signs and symptpms careful observation nystagmus. Most symptoms are markers dizziness central origin. However, some them represent vestibular or other imbalances that cause dizziness. Nystagmus could also peripheral Careful examination can help in discriminating psychogenic (functional)

the objective of this study was to describe the role of electrical stimulation in controlling peripheral vertigo. in a prospective study on 13 healthy volunteers, nystagmus was induced with caloric stimulation and the interval of nystagmus disappearance was recorded. this time indicates the basal response of vestibular end-organ. after caloric irrigation, pulsed signal was applied for each pers...

Differential diagnosis between peripheral and central spontaneous nystagmus can be difficult to classify (as peripheral or central) even on the basis of criteria recommended in the recent literature. The aim of this paper is to use the combination of spontaneous nystagmus and ocular tilt reaction to determine the site of origin of the disease that causes nystagmus. We propose to classify the ny...

AIM To indicate that congenital idiopathic nystagmus (CIN) and sensory defect nystagmus (SDN) can be vertical or asymmetric in some children. METHODS Of 276 children presenting with nystagmus for electrophysiological testing, 14 were identified as having CIN or SDN, yet had a nystagmus which was either vertical (n=11) or horizontal asymmetric (n=3). Flash electroretinograms and flash and patt...

A 65-year-old woman with right-sided Ménière disease experienced one of her usual and frequent acute vertigo attacks during eye movement recording (video 1). The were associated tinnitus, hearing loss, vomiting. She initially demonstrated right-beating nystagmus, but after 2 minutes, the nystagmus gradually reversed became left-beating During reversal, downbeat was present temporarily. then per...

Background: Pharmacological treatment has been successful in some forms of acquired neurological nystagmus. However, drugs are not known to be effective in idiopathic infantile nystagmus or nystagmus associated with ocular diseases. Methods: The authors retrospectively analysed Snellen visual acuity (VA), subjective visual function, and eye movement recordings of 23 patients with nystagmus (13 ...

purpose: to determine the effect of photorefractive keratectomy (prk) on improvement of involuntary eye movements and visual functions in myopic patients with congenital nystagmus. methods: this prospective interventional case series included patients with congenital nystagmus and myopia ≥ -1 d who underwent prk over a 2-year period. complete ophthalmological examinations including visual acuit...