UNLABELLED Nystagmus tests to diagnose BPPV are still relevant in the clinical evaluation of BPPV. However, in everyday practice, there are cases of vertigo caused by head movements, which do not follow this sign in the Dix-Hallpike maneuver and the turn test. AIM To characterize BPPV without nystagmus and treatment for it. MATERIALS AND METHODS A non-systematic review of diagnosis and trea...

The authors assessed relationships between visual acuity and the amplitude, frequency, intensity, and duration of foveation periods in a retrospective study of 32 patients. Twenty-four patients had congenital idiopathic nystagmus, and eight patients had nystagmus and albinism. Visual acuity was determined for Landolt ring optotypes and, as the extrapolated high-frequency cutoff of the contrast ...

PURPOSE We wished to determine the effectiveness of horizontal rectus tenotomy in changing the nystagmus of children with infantile nystagmus syndrome. DESIGN This was a prospective, noncomparative, interventional case series in five children with varied sensory and oculographic subtypes of congenital nystagmus (including asymmetric (a)periodic alternating nystagmus) and no nystagmus treatmen...

background: it is mostly organic diseases that are considered when a neurological sign or symptom is present in the history of a patient; however, there may be psychiatric problems also present which could be missed. we report a case to discuss the possibility of the presence of an organic or psychiatric underlying disorder when facing neurological problems. case presentation: we report a case ...

OBJECTIVES To identify a congenital nystagmus locus on the X chromosome and to characterize the phenotype of a 4-generation family affected with congenital nystagmus and color deficiency. METHODS Sixty-five patients underwent an eye examination, including evaluation for the presence of nystagmus and color vision abnormalities. Affected patients and obligate carriers of the congenital nystagmu...

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...

Electrophysiological measurement of the eye rotation axis using stimulation a single semicircular canal nerve showed that rotated around perpendicular to plane stimulated canal. Therefore, affected can be identified by analyzing in cases abnormal nystagmus. When main component nystagmus is horizontal, origin lateral torsional, anterior and/or posterior The excitatory quite same as inhibitory ny...

In all forms of dysfunction of ocular motility the ultimate aim in obtainin% an understanding of the nature of the condition is to try and provide some form of treatment. This has beenl achieved in most types of strabismus with the considerable advances which have been made in overcoming the sensory and motor complications of the squint, but few such advances have been made in the treatment of ...

OBJECTIVES To compare the usefulness of a CCD camera with infrared illumination (IR-CCD camera) over Frenzel glasses (F Glasses) for the observation of spontaneous nystagmus, the incidence and direction of nystagmus, and the frequency, amplitude and slow phase of spontaneous nystagmus. METHODS One hundred vertiginous patients, fifty-three females and forty-seven males participated in this stu...

In all forms of dysfunction of ocular motility the ultimate aim in obtainin% an understanding of the nature of the condition is to try and provide some form of treatment. This has beenl achieved in most types of strabismus with the considerable advances which have been made in overcoming the sensory and motor complications of the squint, but few such advances have been made in the treatment of ...