{Reference Type}: Journal Article
{Title}: Virtual reality for the measurement of SVV and SVH during static head tilt in healthy adults: a novel vestibular test.
{Author}: Cheng Y;Zhang Y;Chen F;Chen Z;Xue T;Zhang Q;Xu M;
{Journal}: Acta Otolaryngol
{Volume}: 142
{Issue}: 3
{Year}: Mar-Apr 2022
{Factor}: 1.698
{DOI}: 10.1080/00016489.2022.2058082
{Abstract}: <B>UNASSIGNED: </B>Few previous studies have used virtual-reality (VR) technology to measure subjective visual vertical (SVV) and subjective visual horizontal (SVH) during static head tilt (0°, 30°, 45°, 60° and 90°). We propose a novel vestibular test for measuring the normal range of SVV and SVH during static head tilt in healthy adults.<BR><B>UNASSIGNED: </B>Eighty healthy adults were included in the study. SVV and SVH were calculated in nine head positions.<BR><B>UNASSIGNED: </B>With head tilt 90° to the right, SVV skewed to the right, and SVH skewed upward. With head tilt 90° to the left, SVV skewed to the left, and SVH skewed downward. SVV was asymmetrical only at a head tilt of 90°. SVV and SVH were similar at all degrees of head tilt, except for 30° to the right, 45° to the left, and 0°.<BR><B>UNASSIGNED: </B>VR measurements showed that SVV and SVH differed at various degrees of static head tilt. The standardized protocol proposed here may be used to establish a reference range for utricle function when evaluating acute, unilateral vestibular lesions.