Computer Analysis of Spontaneous Nystagmus
نویسندگان
چکیده
منابع مشابه
Spontaneous reversal of nystagmus in the dark.
AIM To report five children with horizontal jerk nystagmus in whom eye movement recordings in the dark revealed a spontaneous reversal in the direction of the nystagmus beat. Three patients were blind in one eye and were diagnosed as having a manifest latent nystagmus (MLN), and two patients had strabismus and congenital nystagmus (CN). METHODS Eye movements were recorded using DC electro-ocu...
متن کاملSpontaneous Nystagmus in the Dark in an Infantile Nystagmus Patient May Represent Negative Optokinetic Afternystagmus
Abnormal projection of the optic nerves to the wrong cerebral hemisphere transforms the optokinetic system from its usual negative feedback loop to a positive feedback loop with characteristic ocular motor instabilities including directional reversal of the optokinetic nystagmus (OKN) and spontaneous nystagmus, which are common features of infantile nystagmus syndrome (INS). Visual input plays ...
متن کاملDiagnostic value of nystagmus: spontaneous and induced ocular oscillations.
Research over the past 20 years has provided a clearer understanding of the pathogenesis of most forms of nystagmus and other ocular oscillations. To the clinician, these advances translate into greater accuracy of nystagmus as a diagnostic sign. However, to capitalise on these advances, it is important to systematically examine eye movements and interpret the findings with reference to pathoph...
متن کاملPseudo-spontaneous nystagmus in horizontal semicircular canal canalolithiasis
Benign paroxysmal positional vertigo (BPPV) involving horizontal semicircular canal (HSCC) is characterized by direction-changing positional nystagmus (DCPN) in a supine roll test, and the occurrence of spontaneous nystagmus in HSCC BPPV has been reported recently. The aim of this study is to investigate the characteristics of pseudo-spontaneous nystagmus (PSN) in patients with HSCC canalolithi...
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...
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ژورنال
عنوان ژورنال: Practica Oto-Rhino-Laryngologica
سال: 1984
ISSN: 1884-4545,0032-6313
DOI: 10.5631/jibirin.77.10special_2303