Overview of Neurological Vision Rehabilitation System
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Overview of Neurological Vision Rehabilitation System



Vision Loss from brain Injury - it\'s about the brain not the eyes.

Vision Loss from brain Injury - it\'s about the brain not the eyes.



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    Overview of Neurological Vision Rehabilitation System Overview of Neurological Vision Rehabilitation System Presentation Transcript

    • 1
      Assessment and Training for people with Neurological Vision Deficits
      NVT: Developed by Clinicians, for Clinicians
    • Acquired Brain Injury
      • Acquired Brain Injury (ABI) is damage to the brain by a variety of causes; hypoxia, infection, tumour, substance abuse, degenerative neurological diseases, strokes or head trauma (TBI).
      • Traumatic Brain Injury (TBI) implies trauma to the head and brain caused by an external force.
      • ABI can cause physical, cognitive, psychosocial and sensory impairments which may lead to restrictions in various areas of a person’s life and lifestyle.
    • 2.2 Million People in the US Acquired Brain Injury
      Every Year
      1.5 million Traumatic Brain Injury: every 21 seconds
      700,000 will have a Stroke: one every 45 seconds
      Stroke is the number 3 killer and leading cause of severe, long-term disability
    • 4
      Neurological Vision Impairment
      • Neurological Vision Impairment occurs in 30 – 35% of all people who suffer a
      Stroke or Traumatic Brain Injury.
      “50% of the patients in a head trauma rehabilitation centre show visual system disorders not assessed before, although most of the patients were chronic and had been treated in other hospitals previously.” (Gianutsos)
    • Neurological Vision Deficits
    • 6
      Vision Therapy
      • Neurological Vision Impairment will affect all aspects of a persons daily life.
      • It would be standard care to receive:
      • Physiotherapy– for improvement in loss of body functions or reduced movement.
      • Occupational Therapy – to increase upper body strength and activities of daily living.
      • Speech Therapy - swallowing, word pronunciation, comprehension etc
      • In many instances there is no minimum clinical standard of care that covers Vision Screening for people with ABI
      • Therefore vision deficits can go undiagnosed and untreated.
    • 7
      Assessment of Visual Function
    • 8
      NVT Protocol Functional Vision Assessment
    • 9
      Visual Perceptual Deficits
      Homonymous Hemianopiais the most common cause of visual field loss, quadrantanopia, relative field loss.
      • Visual Neglect/Visual Inattention - patients can be unaware of the extent of vision loss – causes difficulty with ALL activities of daily living (reading, eating, dressing, mobility in busy or unfamiliar areas).
      • Visual processing speed
      • Visual Memory
      • Visual Spatial deficits
    • 10
      NVT Standardized Scanning Assessment
    • 11
      Case Study - Angela
      • Motor Vehicle Accident TBI:
      • Damage to:
      frontal lobe,
      bi-parietal and
      occipital craniotomy
      • Left Homonymous
      • Left Neglect
      • Visuo-spatial deficits
      • Visual processing deficits
      • Left Hemiparesis & Balance
      • Memory
    • 12
      Static Scanning Sitting Standing
    • 13
      Pen and Paper Tasks
      Transfer of scanning skills to table top tasks.
      Systematic scanning pattern
      Smooth scanning across a line in
      preparation for reading
    • 14
      Transfer to Walking and Scanning
      Step by step methodology in the transfer of scanning skills to mobility tasks in a graded fashion in a client’s local community.
    • 15
      Progression - Scanning Skills Outdoors
    • 16
      Transferring scanning skills into
      everyday community settings.
      Preparation for independent living.
    • 17
      Car Parks
      Transfer from walking frame
      to support cane.
      Ensuring balance, gait and
      Scanning skills are not
    • 18
      Residential Area - Driveways
      Transfer of scanning
      skills into residential
      Scanning into driveways
      for potential hazards
      Good head turn,
      chin over shoulder for self monitoring
    • 19
      The NVT Vision Rehabilitation System
      NVT Scanning Device - Standardised Assessment and Treatment protocols
      2. Vision 2000 Software - rehabilitation and patient management system
      3. Comprehensive Training program for rehabilitation therapists.
    • 20
      International Programs
      • US - Veterans Affairs
      • VA Palo Alto, California – Oct 2006, 08, 10
      • VA Tampa, Florida – Oct/Nov 2007
      • UK Blindness Agencies
      • Fife Society for the Blind – Jan 2006
      • Visibility Glasgow – Nov 2007
      • Denmark– IBOS June 2010
      • Exeter – WESC School Oct 2010
      • Australia – (20 yrs service delivery)
      • Royal Society for the Blind – May 2007, 08
      • Guide Dogs Assoc. Nov 2009
    • 21
      Training courses
      • On Line Theory Training
      • Module 1 - Structure and function of the brain in relation to Visual Processing.
      • Module 2 – Neurological Vision Deficits
      • On site training
      • Practical use of NVT Scanning device and Vision 2000 software
      • Supervision of client training programs
      • Transfer of skills to mobility exercises.
      • strategies for dealing with the additional cognitive and physical deficits
      • Competency measures for attainment of skills
    • 22
      Future Directions
      • Applicability to Education sector
      • Development of vocational training and services to young people with ABI
      • Home based rehabilitation programs for Stroke and ABI
      • International collaborative Research
    • 23
      Allison Hayes
      PO Box 141, Torrensville. SA 5031
      NVT: Developed by clinicians for clinicans.