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Oscillopsia and vertical eye movements in Tullio's phenomenon
H Cohen1, J R Allen, S L Congdon
1Department of Otorhinolaryngology and Communicative Sciences, Baylor College of Medicine, Houston, Tex, USA.
Archives of Otolaryngology--Head & Neck Surgery
|April 1, 1995
Summary
Pure tones triggered oscillopsia (involuntary eye movements) in a patient with Tullio's phenomenon. This suggests inner ear issues cause these unexpected visual disturbances.
Area of Science:
- Otolaryngology
- Neuroscience
- Ophthalmology
Background:
- Investigating the mechanism of Tullio's phenomenon, a rare condition causing sound-induced vertigo and oscillopsia.
- Examining a 30-year-old male patient with bilateral hearing loss presenting with Tullio's phenomenon.
Observation:
- Pure tones (500-2000 Hz, 90-110 dB) were applied to each ear individually.
- Eye movements were recorded using electro-oculography (EOG) while the patient was seated and standing.
- Patient reported the intensity of oscillopsia during auditory stimulation.
Findings:
- Stimulation of the more impaired ear induced oscillopsia and vertical eye movements.
- No significant increase in postural sway was observed on the force platform.
- Oscillopsia was directly correlated with auditory stimuli in the affected ear.
Implications:
- Results support the hypothesis that Tullio's phenomenon originates from inner ear pathology.
- Oscillopsia in this context is likely caused by unplanned vertical eye movements.
- Understanding this link may lead to better diagnostic and therapeutic strategies for auditory-visual disorders.