StableEyes - A Portable Vestibular Rehabilitation Device

Christopher J. Todd, Patrick P. Hubner, Philipp Hubner, Michael C Schubert, Americo A. Migliaccio

Research output: Contribution to journalArticle

Abstract

The vestibulo-ocular reflex (VOR) is the primary mechanism for stabilising vision during rapid head movements. We have developed a training technique that typically increases the VOR response a minimum of 15% after 15 minutes of training. This technique relies on subjects tracking a visual target that moves as a function of head motion, but at a different speed, so that the VOR is challenged to increase in order to stabilise the retinal image of the target. We have developed a portable device, StableEyes, which implements this technique so that unassisted training can be performed at home by patients with VOR hypofunction. The device consists of a head unit and base unit. The head unit contains inertial sensors to measure the instantaneous 3D orientation of the head in space at 250 Hz, and an integrated circuit mirror to dynamically control the position of a laser target in space. The base unit consists of a touch screen interface that allows users to calibrate and set the device, in addition to recording compliance. The laser target range is ±12.5 o. The device latency is 6 ms with a frequency response stable up to 6 Hz for velocities > 80°/s, i.e. head velocities where the VOR contributes most to visual stability. StableEyes was used to increase the VOR response in 10 normal subjects. In these, the VOR towards the adapting side increased by ~11%, which is comparable to our laboratory findings. The adoption of StableEyes could improve the efficacy of vestibular rehabilitation and its outcomes.

Original languageEnglish (US)
JournalIEEE Transactions on Neural Systems and Rehabilitation Engineering
DOIs
StateAccepted/In press - May 10 2018

Fingerprint

Vestibulo-Ocular Reflex
Patient rehabilitation
Rehabilitation
Equipment and Supplies
Touch screens
Lasers
Head
Frequency response
Integrated circuits
Mirrors
Sensors
Head Movements
Compliance
Teaching

Keywords

  • Adaptation
  • AVOR
  • Head
  • Lasers
  • Magnetic heads
  • Mirrors
  • Rehabilitation
  • Sensors
  • StableEyes
  • Training
  • Vestibular
  • Vestibulo-ocular reflex
  • Visualization

ASJC Scopus subject areas

  • Neuroscience(all)
  • Biomedical Engineering
  • Computer Science Applications

Cite this

StableEyes - A Portable Vestibular Rehabilitation Device. / Todd, Christopher J.; Hubner, Patrick P.; Hubner, Philipp; Schubert, Michael C; Migliaccio, Americo A.

In: IEEE Transactions on Neural Systems and Rehabilitation Engineering, 10.05.2018.

Research output: Contribution to journalArticle

Todd, Christopher J. ; Hubner, Patrick P. ; Hubner, Philipp ; Schubert, Michael C ; Migliaccio, Americo A. / StableEyes - A Portable Vestibular Rehabilitation Device. In: IEEE Transactions on Neural Systems and Rehabilitation Engineering. 2018.
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