Normative Scores for the NIH Toolbox Dynamic Visual Acuity Test from 3 to 85 Years.
As part of the National Institutes of Health Toolbox initiative, a computerized test of dynamic visual acuity (cDVA) was developed and validated as an easy-to-administer, cost- and time-efficient test of vestibular and visual function. To establish normative reference values, 3,992 individuals, aged 3-85 years, without vestibular pathology underwent cDVA testing at multiple clinical research testing facilities across the United States. Test scores were stratified by sociodemographic characteristics. cDVA was worse in males (p < 0.001) and those subjects 50 years or older, while there was no difference in dynamic visual acuity across age groups binned from 3 to 49 years. Furthermore, we used these normative cDVA data as a criterion reference to compare both the long (validated) and short versions of the test. Both versions can distinguish between those with and without vestibular pathology (p = 0.0002 long; p = 0.0025 short). The intraclass correlation coefficient between long- and short-cDVA tests was 0.86.
Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine , Baltimore, MD , USA.
Carol
C
Li
Department of Medical Social Sciences, Feinberg School of Medicine, Northwestern University , Chicago, IL , USA.
Jennifer L
JL
Beaumont
Specialty Therapy Source LLC , Jacksonville, FL , USA ; Marshall University School of Medicine , Huntington, WV , USA.
Rose Marie
RM
Rine
Department of Medical Social Sciences, Feinberg School of Medicine, Northwestern University , Chicago, IL , USA.
Jerry
J
Slotkin
Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine , Baltimore, MD , USA ; Department of Physical Medicine and Rehabilitation, The Johns Hopkins University School of Medicine , Baltimore, MD , USA.
Michael C
MC
Schubert
NIH Toolbox; dynamic visual acuity; gaze stability; vestibular hypofunction; vestibular test