This article and any supplementary material should be cited as follows: Rine RM, Roberts D, Corbin BA, McKean-Cowdin R, Varma R, Beaumont J, Slotkin J,

This article and any supplementary material should be cited as follows: Rine RM, Roberts D, Corbin BA, McKean-Cowdin R, Varma R, Beaumont J, Slotkin J, Schubert MC. New portable tool to screen vestibular and visual function—National Institutes of Health Toolbox initiative. J Rehabil Res Dev. 2012;49(2):209–20. http://dx.doi.org/10.1682/JRRD.2010.12.0239

Slideshow ProjectDOI:10.1682/JRRD.2010.12.0239JSP

New portable tool to screen vestibular and visual function—

National Institutes of Health Toolbox initiative

Rose Marie Rine, PT, PhD; Dale Roberts, MS; Bree A. Corbin, MPT; Roberta McKean-Cowdin, PhD;

Rohit Varma, MD, MPH; J. Beaumont, MS; J. Slotkin, PhD; M. C. Schubert, PT, PhD



• Aim– Develop vestibular and visual function test that is:

• Limited in number of participant tests/demands.• Inexpensive.• Time efficient.• Portable.• Valid indicator of gaze stability and vision acuity.• Applicable to subjects aged 3–85.

• Relevance– Significant percentage of children and adults have vestibular

deficits.– >150 million American have a visual impairment.



Methods

• Used computerized test of dynamic visual acuity (cDVA) to measure difference in visual acuity between head still and head moving in yaw.

• Tested adults and children with 3 optotype sets.

• Validated cDVA with bithermal calorics, rotational chair, and light box testing.



Results• cDVA scores significantly differed between those

with and without pathology.

• Good to excellent sensitivity (73%) and specificity (69%).



Conclusions

• cDVA – Yields reliable and valid measures of both

static and dynamic visual acuity.

– Meets National Institutes of Health Toolbox initiative qualifications.

Documents

This article and any supplementary material should be cited as follows: Rine RM, Roberts D, Corbin BA, McKean-Cowdin R, Varma R, Beaumont J, Slotkin J,