Journal
ACTA OTO-LARYNGOLOGICA
Volume 130, Issue 7, Pages 820-823Publisher
INFORMA HEALTHCARE
DOI: 10.3109/00016480903426592
Keywords
Vestibular deficient patients; oscillopsia; Snellen optotypes; adptative staircase algorithm; treadmill
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Conclusion: The test is simple and sensitive enough to separate normal subjects from patients suffering from a vestibular loss. There was also a good correlation between the objective results and the subjective complaint of oscillopsia. Objectives: Oscillopsia (i.e. blurred vision while walking) is often reported by patients suffering from vestibular loss. We developed a test to quantify oscillopsia. Methods: Visual acuity was determined in 16 normal subjects and in 8 patients suffering from a bilateral vestibular loss, at rest and while walking at increasing speed on a treadmill. Snellen optotypes were randomly projected on a screen and the visual acuity was determined with an adaptative staircase algorithm. Results: In normal subjects, the visual acuity did not decrease markedly during walking, but decreased significantly in patients with a vestibular loss.
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