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Dynavision D2 Visual Training System

Dynavision D2 Visual Training System. Karen Hookstadt, OTR Spalding Rehabilitation Hospital. objectives. Discuss the use of technology and how it can improve an individual’s visual and motor skills Define the role of our visual system and how deficits affect performance in daily activities

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Dynavision D2 Visual Training System

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  1. Dynavision D2Visual Training System Karen Hookstadt, OTR Spalding Rehabilitation Hospital

  2. objectives • Discuss the use of technology and how it can improve an individual’s visual and motor skills • Define the role of our visual system and how deficits affect performance in daily activities • Identify commonly used terminology in relation to visual skills

  3. History of dynavision • Originally designed as a device to improve visual motor skills of athletes • Then adapted to provide the same benefits to individuals with visual motor deficits resulting from an injury or disease • Mary Warren PhD, OTR/L, SCLV, FAOTA (highly respected in OT and vision) recognized the device and the training programs as being useful within the rehabilitation field

  4. Intro to Device • Large, height adjustable board (4 x 4 feet) • 64 contoured LED switches • Five concentric rings/Four quadrants • Choice of Red or Green LED lights • Central Focal LCD screen • Audible feedback with correct responses • Game-like presentation, challenging levels • Computer Netbook: Patient database (history storage)

  5. Appropriate clients • Stroke • TBI (acquired or non-traumatic) • MS • Vestibular and Balance Disorders • Presentation of the following deficits: unilateral inattention, neglect, visual field loss, hemianopsia, or suppression. • Additional uses: sustained attention, divided attention, eye-hand coordination, reaction time, balance, endurance, UE AROM • Contraindicated for clients with photo sensitive seizure disorders.

  6. Vision Terminology • Fixation: ability to direct and maintain steady eye gaze on a target • Scanning: visual search that requires attention and combines smooth and quick movements of the eyes to locate objects or targets in the surrounding environment • Smooth pursuits: eye movements that maintain continued fixation on moving targets

  7. Vision terminology • Saccades: quick, discontinuous but simultaneous movements of both eyes in the same direction (visual search and then fixate onto an target) • Accommodation: ability to adjust visual focus at varying distances (convergence/divergence)

  8. How visual deficits present functionally • Exhibit difficulty localizing or orienting visual stimuli or objects • Orientation of their body in space (ability to orient to midline) • Significant eye gaze or preference to uninvolved side OR reluctant to move their head past midline • Frequently bump into objects • Have difficulty initiating or coordinating movements

  9. How visual deficits present functionally • Difficulty with self care, mobility and transfers • Depth perception (judging distances between objects, curb height, etc) • Anxiety moving in busy environments • Display limited functional cognitive skills (attention, memory, processing, multi-tasking) • Complain of disorientation (especially when moving, such as riding in a car)

  10. Why focus on the visual system when there are so many other skills that need to be addressed?

  11. Role of Visual System • Primary method of gathering and processing environmental information • Postural alignment and control (vision leads our movement patterns) • Social interaction: visual system allows us to interpret body language, maintain eye contact

  12. Role of visual system • Vision assists in our ability to engage in any cognitive activity and allows us to make decisions upon what we are interpreting (reading, writing, safety awareness, navigating in the environment, driving, etc) • When our vision is compromised our overall ability to process information slows significantly

  13. Assessment and Training Programs • Mode A: self pacing program (light only turns off when the client touches it); facilitate visual scanning • Mode B: automatic presentation of stimulus (machine timed stimulus); facilitates reaction time • Mode B with Flash Option: challenging higher functioning individuals, incorporates divided attention (visual, physical and cognitive component) • Reaction time: able to assess visual and physical reaction times • Endurance Test: sustained attention- program continues for 4 minutes

  14. Video • Lets see it in action

  15. Effectiveness of dynavision training • Because of the relatively recent introduction of the Dynavision into rehabilitation centers, the published literature surrounding the use of this device in rehabilitation is limited • Over 600 rehabilitation centers are currently utilizing the Dynavision in treatment Websites: • Dynavisiond2.com • visABILITIES.com

  16. Questions?

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