Overview of Neurological Vision Rehabilitation System

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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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  • 1. 1
    Assessment and Training for people with Neurological Vision Deficits
    NVT: Developed by Clinicians, for Clinicians
  • 2. 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).
    • 3. Traumatic Brain Injury (TBI) implies trauma to the head and brain caused by an external force.
    • 4. 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
  • 5. 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)
  • 6. Neurological Vision Deficits
  • 7. 6
    Vision Therapy
    • Neurological Vision Impairment will affect all aspects of a persons daily life.
    • 8. It would be standard care to receive:
    • 9. Physiotherapy– for improvement in loss of body functions or reduced movement.
    • 10. Occupational Therapy – to increase upper body strength and activities of daily living.
    • 11. Speech Therapy - swallowing, word pronunciation, comprehension etc
    • 12. In many instances there is no minimum clinical standard of care that covers Vision Screening for people with ABI
    • 13. Therefore vision deficits can go undiagnosed and untreated.
  • 7
    Assessment of Visual Function
  • 14. 8
    NVT Protocol Functional Vision Assessment
  • 15. 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).
    • 16. Visual processing speed
    • 17. Visual Memory
    • 18. Visual Spatial deficits
  • 10
    NVT Standardized Scanning Assessment
  • 19. 11
    Case Study - Angela
    • Motor Vehicle Accident TBI:
    • 20. Damage to:
    frontal lobe,
    bi-temporal,
    bi-parietal and
    occipital craniotomy
    • Left Homonymous
    Quadrantanopia
    • Left Neglect
    • 21. Visuo-spatial deficits
    • 22. Visual processing deficits
    • 23. Left Hemiparesis & Balance
    • 24. Memory
  • 12
    Static Scanning Sitting Standing
  • 25. 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
  • 26. 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.
  • 27. 15
    Progression - Scanning Skills Outdoors
  • 28. 16
    Supermarket
    Shopping
    Transferring scanning skills into
    everyday community settings.
    Preparation for independent living.
  • 29. 17
    Street
    Crossings,
    Car Parks
    Transfer from walking frame
    to support cane.
    Ensuring balance, gait and
    Scanning skills are not
    compromised.
  • 30. 18
    Residential Area - Driveways
    Transfer of scanning
    skills into residential
    settings.
    Scanning into driveways
    for potential hazards
    Good head turn,
    chin over shoulder for self monitoring
  • 31. 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.
  • 32. 20
    International Programs
    • US - Veterans Affairs
    • 33. VA Palo Alto, California – Oct 2006, 08, 10
    • 34. VA Tampa, Florida – Oct/Nov 2007
    • 35. UK Blindness Agencies
    • 36. Fife Society for the Blind – Jan 2006
    • 37. Visibility Glasgow – Nov 2007
    • 38. Denmark– IBOS June 2010
    • 39. Exeter – WESC School Oct 2010
    • 40. Australia – (20 yrs service delivery)
    • 41. Royal Society for the Blind – May 2007, 08
    • 42. Guide Dogs Assoc. Nov 2009
  • 21
    Training courses
    • On Line Theory Training
    • 43. Module 1 - Structure and function of the brain in relation to Visual Processing.
    • 44. Module 2 – Neurological Vision Deficits
    • 45. On site training
    • 46. Practical use of NVT Scanning device and Vision 2000 software
    • 47. Supervision of client training programs
    • 48. Transfer of skills to mobility exercises.
    • 49. strategies for dealing with the additional cognitive and physical deficits
    • 50. Competency measures for attainment of skills
  • 22
    Future Directions
    • Applicability to Education sector
    • 51. Development of vocational training and services to young people with ABI
    • 52. Home based rehabilitation programs for Stroke and ABI
    • 53. International collaborative Research
  • 23
    Allison Hayes
    www.nvtsytems.com.au
    PO Box 141, Torrensville. SA 5031
    Australia
    ahayes@nvtsystems.com.au
    NVT: Developed by clinicians for clinicans.