Validated argentine version of the visual vertigo analogue scale.

Area of Science:

• Neurology
• Audiology
• Ophthalmology

Background:

• Visual vertigo (VV) significantly impacts daily life, often triggered by visual stimuli.
• The Visual Vertigo Analogue Scale (VVAS) is a self-administered tool for assessing VV.
• The Argentine version (VVAS-A) required validation for psychometric properties.

Purpose of the Study:

• To validate the Argentine version of the Visual Vertigo Analogue Scale (VVAS-A).
• To confirm the psychometric properties of VVAS-A in patients experiencing vestibular disorders.

Main Methods:

• 82 vestibular patients completed the VVAS-A and Dizziness Handicap Inventory Argentine version (DHI-A).
• Psychometric properties including internal consistency, test-retest reliability, and construct validity were assessed.
• Test-retest reliability was calculated using the intraclass correlation coefficient (ICC).

Main Results:

• The VVAS-A demonstrated acceptable internal consistency (Cronbach's alpha: 0.91).
• Test-retest reliability was found to be strong (r = 0.764).
• Significant correlations were observed between VVAS-A and DHI-A scores, supporting construct validity.

Conclusions:

• The VVAS-A is confirmed as a valid and reliable instrument.
• It is suitable for evaluating visual vertigo in patients with vestibular disorders.
• This validated tool aids in assessing VV within the Argentine population.