Presentation
It is often easier to see something new rather than to see a small change in something already present. [ncbi.nlm.nih.gov]
Entire Body System
- Movement Disorder
Neurology 23:530–533 Article CAS PubMed Google Scholar Barreiro AK, Bronski JC, Anastasio TJ (2009) Bifurcation theory explains waveform variability in a congenital eye movement disorder. [link.springer.com]
Eyes
- Night Blindness
Doc Ophthalmol 39:155–182 Article CAS PubMed Google Scholar Winkelman BH, Howlett MH, Hölzel MB, Joling C, Fransen KH, Pangeni G et al (2019) Nystagmus in patients with congenital stationary night blindness (CSNB) originates from synchronously firing [link.springer.com]
Neurologic
- Nystagmus
Fixation nystagmus refers to the nystagmus that appears or markedly increases with fixation. [snucm.elsevierpure.com]
(c) Vertical spontaneous nystagmus is compared with nystagmus during horizontal pursuit. [ncbi.nlm.nih.gov]
J Neurol 267:1547–1549 Article PubMed Google Scholar Yee RD, Baloh RW, Honrubia V, Lau CG, Jenkins HA (1979) Slow build-up of optokinetic nystagmus associated with downbeat nystagmus. Invest Ophthalmol Vis Sci 18:622–629 CAS PubMed Google Scholar [link.springer.com]
Congenital nystagmus and many varieties of central nystagmus are unaffected by or even increased by fixation. Nystagmus which is increased by fixation is called "fixation nystagmus". [dizziness-and-balance.com]
For faster navigation, this Iframe is preloading the Wikiwand page for Nystagmus. [wikiwand.com]
Pathophysiology
J Neurol Neurosurg Psychiatry 80:900–903 Article CAS PubMed Google Scholar Korda A, Zee DS, Wyss T, Zamaro E, Caversaccio MD, Wagner F et al (2021) Impaired ‘fixation suppression’of horizontal vestibular nystagmus during smooth pursuit: pathophysiology [link.springer.com]
Impaired fixation suppression of horizontal vestibular nystagmus during smooth pursuit: pathophysiology and clinical implications. [ncbi.nlm.nih.gov]
Prevention
Ophthalmoscopy is another bedside test that can be used to bring out a nystagmus; one looks at the fundus of one eye with the ophthalmoscope, which is temporarily “blinded” by the ophthalmoscope light, and at the same time covers the other eye to prevent [ncbi.nlm.nih.gov]