Evaluation of Optokinetic Nystagmus Asymmetry in Surgically Treated Infantile Esotropia Patients

The optokinetic uncover test: a new insight into infantile esotropia.

IMPORTANCE We devised the optokinetic uncover test to examine the role of peripheral retinal motion input in generating horizontal optokinetic responses in patients with infantile strabismus. OBJECTIVE To ascertain whether subcortical visual input contributes to the asymmetrical monocular optokinetic responses that characterize infantile esotropia. DESIGN AND SETTING Observational study in ...

Spontaneous 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 ...

Volition and Automaticity in the Interactions of Optokinetic Nystagmus, Infantile Nystagmus, Saccades and Smooth Pursuit

Torsional optokinetic nystagmus after unilateral vestibular loss: asymmetry and compensation.

The aim of this study was to analyse torsional optokinetic nystagmus (tOKN) in 17 patients with Menière's disease before and after (1 week, 1 month and 3 months) a curative unilateral vestibular neurotomy (UVN). The tOKN was investigated during optokinetic stimulations around the line of sight directed towards either the lesioned or the healthy side, at various constant angular velocities. Dyna...

evaluation of fat atrophy in patients with dermis fat graft of orbit by ct-scan

چکیده ندارد.