Recovery of Dynamic Visual Acuity in Unilateral Vestibular Hypofunction
| dc.contributor.author | Herdman, Susan J. | |
| dc.contributor.author | Schubert, Michael C. | |
| dc.contributor.author | Das, Vallabh E. | |
| dc.date.accessioned | 2020-03-10T18:03:53Z | |
| dc.date.available | 2020-03-10T18:03:53Z | |
| dc.date.issued | 8/1/2003 | |
| dc.description.abstract | Objective: To determine the effect of vestibular exercises on the recovery of visual acuity during head movement in patients with unilateral vestibular hypofunction. Study Design: Prospective, randomized, double-blind study. Setting: Ambulatory referral center. Patients: Twenty-one patients with unilateral vestibular hypofunction, aged 20 to 86 years. Intervention: One group (13 patients) performed vestibular exercises designed to enhance the vestibulo-ocular reflex, and the other group (8 patients) performed placebo exercises. The placebo group was switched to vestibular exercises after 4 weeks. Outcome Measures: Measurements of dynamic visual acuity (DVA) during predictable (DVA-predictable) and unpredictable (DVA-unpredictable) head movements by means of a computerized test and measurement of intensity of oscillopsia by means of a visual analog scale. Results: As a group, patients who performed vestibular exercises showed a significant improvement in DVA-predictable (P<.001) and DVA-unpredictable (P<.001), while those performing placebo exercises did not (P = .07). On the basis of stepwise regression analysis, the leading factor contributing to improvement was vestibular exercises. This reached significance for DVA-predictable (P = .009) but not DVA-unpredictable (P = .11). Other factors examined included age, time from onset, initial DVA, oscillopsia, and duration of treatment. Changes in oscillopsia did not correlate with DVA-predictable or DVA-unpredictable. Conclusions: Use of vestibular exercises is the main factor involved in recovery of DVA-predictable and DVA-unpredictable in patients with unilateral vestibular hypofunction. Exercises may foster the use of centrally programmed eye movements that could substitute for the vestibulo-ocular reflex. The DVA-predictable would benefit more from this than would DVA-unpredictable. | |
| dc.identifier.citation | Copyright 2003 Archives of Otolaryngology–Head & Neck Surgery. Recommended citation: Herdman, Susan J., Michael C. Schubert, Vallabh E. Das, and Ronald J. Tusa. "Recovery of dynamic visual acuity in unilateral vestibular hypofunction." Archives of Otolaryngology–Head & Neck Surgery 129, no. 8 (2003): 819-824. DOI: 10.1001/archotol.129.8.819. URL: https://jamanetwork.com/journals/jamaotolaryngology/fullarticle/483931. Reproduced in accordance with the original publisher’s licensing terms and with permission from the author(s). | |
| dc.identifier.uri | https://hdl.handle.net/10657/6004 | |
| dc.language.iso | en_US | |
| dc.publisher | Archives of Otolaryngology Head and Neck Surgery | |
| dc.subject | N/A | |
| dc.title | Recovery of Dynamic Visual Acuity in Unilateral Vestibular Hypofunction | |
| dc.type | Article |