Recovery of dynamic visual acuity in unilateral vestibular hypofunction. Export

@article{citeulike:3150630, 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.}, address = {Department of Rehabilitation Medicine, Emory University, Atlanta, Ga., USA. sherdma@emory.edu}, author = {Herdman, S. J. and Schubert, M. C. and Das, V. E. and Tusa, R. J.}, citeulike-article-id = {3150630}, citeulike-linkout-0 = {http://dx.doi.org/10.1001/archotol.129.8.819}, citeulike-linkout-1 = {http://view.ncbi.nlm.nih.gov/pubmed/12925338}, citeulike-linkout-2 = {http://www.hubmed.org/display.cgi?uids=12925338}, doi = {10.1001/archotol.129.8.819}, issn = {0886-4470}, journal = {Archives of otolaryngology--head \& neck surgery}, keywords = {dizziness, double\_blinded, dva, dva\_predictable, dva\_unpredictable, neurology\_physical\_therapy, physical\_therapy, rct, rehabilitation, unilateral\_vestibular\_hypofunction, vas, vestibular, vestibular\_exercises, vestibular\_impariment, vestibular\_rehabilitation, visual\_acuity, vor}, month = {August}, number = {8}, pages = {819--824}, posted-at = {2009-06-24 18:42:49}, priority = {2}, title = {Recovery of dynamic visual acuity in unilateral vestibular hypofunction.}, url = {http://dx.doi.org/10.1001/archotol.129.8.819}, volume = {129}, year = {2003} }

TY - JOUR ID - citeulike:3150630 L3 - citeulike-article-id:3150630 N2 - 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. IS - 8 JF - Archives of otolaryngology--head & neck surgery SN - 0886-4470 AD - Department of Rehabilitation Medicine, Emory University, Atlanta, Ga., USA. sherdma@emory.edu EP - 824 TI - Recovery of dynamic visual acuity in unilateral vestibular hypofunction. VL - 129 SP - 819 KW - dizziness KW - double_blinded KW - dva KW - dva_predictable KW - dva_unpredictable KW - neurology_physical_therapy KW - physical_therapy KW - rct KW - rehabilitation KW - unilateral_vestibular_hypofunction KW - vas KW - vestibular KW - vestibular_exercises KW - vestibular_impariment KW - vestibular_rehabilitation KW - visual_acuity KW - vor AU - Herdman, SJ AU - Schubert, MC AU - Das, VE AU - Tusa, RJ PY - 2003/08// UR - http://dx.doi.org/10.1001/archotol.129.8.819 ER -