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Visual disorders and mal de debarquement syndrome: a potential comorbidity questionnaire-based study
Cherylea J Browne1,2,3, Paul Fahey4, Stella R Sheeba1,3
1School of Science, Western Sydney University, Sydney, NSW 2560, Australia.
Aim:
Mal de debarquement syndrome (MdDS) is a neurological condition characterized by a constant sensation of self-motion; onset may be motion-triggered (MT) or non-motion-triggered/spontaneous (NMT/SO). People with MdDS experience similar symptoms to those with vertical heterophoria, a subset of binocular visual dysfunction. Hence, we aimed to explore potential visual symptom overlaps.
Methods:
MdDS patients (n = 196) and controls (n = 197) completed a visual health questionnaire.
Results:
Compared with controls, the MdDS group demonstrated higher visual disorder scores and visual complaints. NMT/SO participants reported unique visual symptoms and a higher prevalence of mild traumatic brain injury.
Conclusion:
Our findings suggest visual disorders may coexist with MdDS, particularly the NMT/SO subtype. The difference in visual dysfunction frequency and medical histories between subtypes, warrants further investigation into differing pathophysiological mechanisms.
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