The Easy, Accurate and Low-Cost way to measure
subjective visual vertical in your patients
“a simple, quick, and useful method for detecting PVL (Peripheral Vestibular Lesions) in pediatric patients in the clinic setting.”
J.R. Brodsky, et al., Peripheral vestibular loss detected in pediatric patients using a smartphone-based test of the subjective visual vertical, Int. J. Pediatr. Otorhinolaryngol. (2015)
Also used in F. Gandor, D. Basta, D. Gruber, W. Poewe, and G. Ebersbach, “Subjective Visual Vertical in PD Patients with Lateral Trunk Flexion,” Parkinson’s Disease, vol. 2016, Article ID 7489105, 4 pages, 2016.
“I would like to commend you for developing such a fantastic application…this application provides an invaluable “bedside” evaluation tool. As I am sure you aware previously such an assessment was only available through costly and inaccessible diagnostic laboratories.”
Dr. Daniel Lane, BSc (Chiro) DC (UK) DACNB FFAAFN
“Visual vertical” ★★★★★
“Quick n easy, brilliant”
Baiju italia (Italy) (posted in iTunes)
“great tool” ★★★★★
“This is a great app- simple to use and easy to track. I will add this to my exam along with OPK+ and Tremor Tracer apps. Thanks!”
Nancy DC (USA) (posted in iTunes)
If you are practising neurology or vestibular rehabilitation you should be testing subjective visual vertical in your patients. It has been shown to be a sensitive and reliable test for brainstem lesions and is one of the few tests available for otolithic function.
However, up until now testing subjective visual vertical required costly and bulky equipment. The Visual Vertical application for iphone and ipad changes all that. With just your iphone, some blu tack* and a bucket (yes really, a bucket!) you can take accurate readings in just a few minutes, for a tiny fraction of the normal cost.
An article in press at the time of writing in the International Journal of Pediatric Otorhinolaryngology found that the Visual Vertical application was “a simple, quick, and useful method for detecting PVL in pediatric patients in the clinic setting.” (1)
How do you start? We have made the process simple. Click on the link for the App Store. Once you have the app, visit our “How to” page and with our quick video tutorials you can be set up and ready to go in less than a few minutes. Oh, and don’t forget to register your purchase to receive our free guide on the Interpretation of Subjective Visual Vertical and the Ocular Tilt Reaction.
Click here to purchase this application in the App Store
(1) J.R. Brodsky, et al., Peripheral vestibular loss detected in pediatric patients using a smartphone-based test of the subjective visual vertical, Int. J. Pediatr. Otorhinolaryngol. (2015), http://dx.doi.org/10.1016/j.ijporl.2015.09.020
* Around the world Blu Tack is also known as “Elmer’s Tack”, “Zorkai”, “Prestik”, “Sticky Stuff”, “kennaratyggjó”, “Tack-it”,”Buddies”, “Pritt-Tack”, “Poster Putty”, “Tac ‘N Stick”, “Ticky Tack”, “Sticky Tack”, “White Tack” or “Patafix”.