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Updated: Jan 29, 2026
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Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
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Dynamic visual acuity in benign paroxysmal positional vertigo.
1a Department of ORL and HNS , Anadolu Medical Center , Kocaeli , Turkey.
Acta Oto-Laryngologica
|February 19, 2019
Summary
Dynamic visual acuity (DVA) testing revealed impaired vision in patients with benign paroxysmal positional vertigo (BPPV). However, DVA did not help differentiate between affected and healthy ears in BPPV patients.
Area of Science:
- Ophthalmology
- Neurology
- Vestibular System Disorders
Background:
- Benign paroxysmal positional vertigo (BPPV) is characterized by transient vertigo during head movements.
- Head motions in BPPV patients can also lead to reduced visual ability.
Purpose of the Study:
- To evaluate the clinical utility of the dynamic visual acuity (DVA) test in patients diagnosed with BPPV.
- To determine if DVA can help differentiate between affected and healthy ears in BPPV.
Main Methods:
- Thirty BPPV patients (11 lateral canal, 19 posterior canal) and 10 controls underwent DVA testing.
- Participants identified optotype orientation during rapid horizontal and vertical head movements.
- Data analyzed using one-way ANOVA with significance at p < .01.
Main Results:
- BPPV patients (LC and PC) demonstrated significantly reduced DVA compared to controls (p < .01).
- No significant differences in vertical DVA (vDVA) were observed between lateral canal (LC) and posterior canal (PC) BPPV groups.
- Horizontal DVA (hDVA) showed no significant difference between ipsilesional and contralesional head rotation in either LC or PC BPPV groups.
Conclusions:
- Patients with BPPV may experience diminished visual acuity, especially during acute phases.
- The DVA test, as applied in this study, was not effective in distinguishing pathological from normal ears in BPPV patients.
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