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nystagmus

Etiology: - congenital - acquired - labyrinthitis - Meniere's disease - stroke - thiamine deficiency - vitamin B12 deficiency - brain diseases - multiple sclerosis - brain tumor - pharmaceuticals - phenytoin - sedatives - alcohol Clinical manifestations: - ocular ataxia - rhythmical involuntary oscillations of the eyeballs either pendular or jerky - visual impairment - difficulty visually fixating on environment objects - reduced depth perception - may impair balance & coordination * video of horizontal jerk nystagmus [3]

Specific

gaze-evoked nystagmus; direction-changing nystagmus horizontal jerk nystagmus jerk nystagmus optokinetic nystagmus pendular nystagmus vertical nystagmus X-linked congenital nystagmus 1

General

sign/symptom

References

  1. Stedman's Medical Dictionary 24th ed, Williams & Wilkins, Baltimore, 1982
  2. Harrison's Principles of Internal Medicine, 14th ed. Fauci et al (eds), McGraw-Hill Inc. NY, 1998, pg 172
  3. Wikipedia: Vertigp https://en.wikipedia.org/wiki/Vertigo
  4. MedlinePlus: Nystagmus https://medlineplus.gov/ency/article/003037.htm
  5. Sekhon RK, Deibel JP Nystagmus Types NCBI Bookshelf. March 16, 2019 https://www.ncbi.nlm.nih.gov/books/NBK539711/

Component-of

head impulse, nystagmus & test of skew (HINTS)