Nystagmus: physiology and causes
Evidence-based neurology checklist on nystagmus: physiology and causes: Definition Nystagmus describes repetitive involuntary eye movements They start with slow drifts of the eye away from the target In pendular nystagmus, the to and fro movements are sinusoidal In jerk nystagmus the corrective…
Definition
- Nystagmus describes repetitive involuntary eye movements
- They start with slow drifts of the eye away from the target
- In pendular nystagmus, the to and fro movements are sinusoidal
- In jerk nystagmus the corrective saccadic movement is fast
Mechanisms that prevent nystagmus
Physiological causes
Visual pathway causes
Neurological causes
Drug-induced causes
Differential diagnosis
References
- Serra A, Leigh RJ. Diagnostic value of nystagmus: spontaneous and induced ocular oscillations. JNNP 2002; 73:615–618.
- Abadi RV. Mechanisms underlying nystagmus. J R Soc Med 2002; 95:231–234.
- Stahl JS, Plant GT, Leigh RJ. Medical treatment of nystagmus and its visual consequences. J R Soc Med 2002; 95:235-237.
- Balani A, Kumar AD, Marda SS, Alwala S. Nondecussating retinal-fugal fiber syndrome: Clinical and neuroimaging clues to diagnosis. Indian J Ophthalmol 2015; 63:858-861.
