Related Experiment Videos
Eye movement tics
F Shawkat1, C M Harris, M Jacobs
1Department of Ophthalmology, Hospital for Sick Children, London.
The British Journal of Ophthalmology
|November 1, 1992
Summary
This case study describes an 8-year-old girl with opsoclonus-like eye movements and facial tics. The abnormal eye movements resolved spontaneously, suggesting a possible diagnosis of ocular tics.
Area of Science:
- Ophthalmology
- Pediatric Neurology
- Movement Disorders
Background:
- An 8-year-old girl experienced intermittent facial tics for 18 months.
- She also presented with opsoclonus-like abnormal eye movements.
Observation:
- Investigations, including electro-oculography, were performed.
- Electro-oculography revealed eye movements of variable amplitude (10-40 degrees) at 3-4 Hz without intersaccadic intervals.
- Normal saccades, smooth pursuit, optokinetic, and vestibular reflexes were noted.
Findings:
- The abnormal eye movements resolved spontaneously over time.
- The clinical presentation and electro-oculography findings were consistent with a diagnosis of ocular tics.
Implications:
- This case highlights the potential for opsoclonus-like eye movements to manifest as a form of tic disorder in children.
- Further research may elucidate the underlying pathophysiology and diagnostic criteria for ocular tics.