Post on 01-Jan-2016
Karen Hookstadt, OTR
Spalding Rehabilitation Hospital
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
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
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)
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.
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
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)
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
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)
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
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
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
Lets see it in action
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