Pathogenesis of nystagmus
نویسندگان
چکیده
منابع مشابه
Torsional nystagmus: quantitative features and possible pathogenesis.
We measured eye rotations in three planes in a patient with acquired, torsional nystagmus. This nystagmus had linear or increasing-velocity waveforms, was increased after active pitch rotations of the head, and was suppressed by convergence. Magnetic resonance imaging demonstrated a midpontine lesion that was probably a venous angioma. We postulate that torsional nystagmus in this patient was d...
متن کاملStudy of congenital nystagmus: optokinetic nystagmus.
A severe defect of optokinetic nystagmus (OKN) was found in 46 patients with congenital nystagmus. Abnormal patterns of OKN, such as superimposition of pendular oscillations on the optokinetic slow component and inversion of OKN, were observed. Optokinetic gain (eye movement velocity/drum velocity) was decreased compared to that in normal subjects, and optokinetic after-nystagmus, or transient ...
متن کاملMiners' Nystagmus an Investigation of Miners' Nystagmus
As an ophthalmic and aural surgeon practising in a colliery area, I meet many cases of miners' nystagmus in miners' hospitals, and mnany cases are referred to me by colliery companies and the South Wales Miners' Federation. I feel I have some advantage over some previous investigators, I am both an ophthalmic and an aural surgeon; I have not read any literature which states that the inner ear h...
متن کاملNovel FRMD7 Mutations and Genomic Rearrangement Expand the Molecular Pathogenesis of X-Linked Idiopathic Infantile Nystagmus.
PURPOSE Idiopathic infantile nystagmus (IIN; OMIM 31700) with X-linked inheritance is one of the most common forms of infantile nystagmus. Up to date, three X-linked loci have been identified, Xp11.4-p11.3 (calcium/calmodulin-dependent serine protein kinase [CASK]), Xp22 (GPR143), and Xq26-q27 (FRMD7), respectively. Here, we investigated the role of mutations and copy number variations (CNV) of...
متن کاملInfantile nystagmus syndrome: clinical characteristics, current theories of pathogenesis, diagnosis, and management.
Infantile nystagmus syndrome (INS) is an important clinical diagnosis because it is a common presenting sign of many ocular, neurologic, and systemic diseases. Although INS has been studied for more than a century, its diagnosis and treatment remains a challenge to clinicians because of its varied manifestations and multiple associations, and its pathogenesis continues to rouse considerable sci...
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ژورنال
عنوان ژورنال: Okayama Igakkai Zasshi (Journal of Okayama Medical Association)
سال: 1996
ISSN: 0030-1558,1882-4528
DOI: 10.4044/joma1947.108.3-6_65