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Visual Impairment in Adults

Causes, Implications, Strategies
by

Cecelia Quintana

on 30 August 2013

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Transcript of Visual Impairment in Adults

Newsline - 841-8844 (5 am - 2 pm)
Descriptive Video Service
1-800-736-3099
Independent Living Aids
1-800-537-2118
NM State Library (Talking Books)
1-800-456-5515
Hadley School for the Blind
1-847-446-8111
Money
Use of Appliances
Cooking
Cleaning
Checkbook Use
Computer Use
Phone Use
Dressing
Strategies for Independence
Mobility
Human Guide
Use of public transportation
Hired Drivers
Referral for Evaluation for Orientation and Mobility Training
Strategies for Independence
Recreation and Leisure
Reading
TV/Movie viewing
Exercise
Belonging
Games
Restaurants
Spending time with friends
Strategies for Quality of Life
Optical aids
Magnifiers
Hand-held telescopes
Bioptics
Reading glasses
Non-optical aids
CCTV
Screen readers/enlargement options
Long cane for travel (including training)

Equipment Options
Hemianopia from Stroke or other head trauma
Learn to turn head to see full picture
Use field expanding prisms
Place important objects in remaining field
Magnification may help if using peripheral fields
Modifications
High illumination
Regular size (small) print
View things from a distance
Devise search patterns
Use of mobility aid (especially for night travel)
Use of Braille
Avoid glare (variable lighting from behind)
Magnification
Color coding
Surgical removal after mature, (aphakia) then reading glasses
Eccentric viewing
Rheostat to allow reduced lighting (enlarge pupil)
Magnification
Sunglasses
CCTV reverse polarity/colors on computer
High contrast (Use of sharpies)
Environmental Modifications
Lighting – type, intensity, direction (attention to glare)
Magnification – Ocular and Electronic
Contrast
Clutter
Position of materials
General Considerations
Hobbies R Us
Vision loss due to stroke or other head trauma
Most often results in homonymous hemianopia in stroke patients - left side more often neglected
Other field losses possible
Other possibilities
Can sometimes regain some use of vision
Be careful not to confuse with agnosia (can clearly see object, but not able to name it)
Progressive deterioration of retina
Onset may be late
Peripheral to central (usual progression)
Tunnel vision (usually clear in intact areas)
Night blindness early symptom
May result in total or partial blindness
Characteristics
Increased pressure (blocked flow of fluid)
Often no symptoms early on
Often treatable
Peripheral field loss
Poor night vision
Contrast sensitivity
Retinal/vitreal hemorrhaging
Possible retinal detachment
Field losses
Floating obstructions
Sensitivity to glare
Fluctuating acuity
Characteristics
Characteristics
Characteristics
Acuity
Oculomotor problems
Oculomotor problems


Contrast
Vision is more than seeing
That Mysterious Thing
Called Vision
American Foundation for the Blind
http://www.afb.org
DB-Link (Deaf-blind)
http://www.tr.wou.edu/dblink
NM Commission for the Blind
841-8844
Resources
PLAY TIME
PLAY TIME
Treat condition
High illumination, especially at night
Control diet/glucose levels
High lighting
High contrast (sharpie markers)
Magnification or large print
Independence
Daily living skills
Mobility
Quality of Life
Recreation/leisure
Belonging
Implications of Vision Loss
Causes, Implications and Strategies
Visual Impairment in Adults
Age related
Stroke or trauma related
Common Causes of Vision Loss
Types of Vision Loss
Clarity of the image
Let's review the structure of the eye

Medically related
Congenital
Macular degeneration
Cataracts
Progressive central field loss (color and fine detail)
Normal peripheral
Photophobia probable
Characteristics
Opacity of lens
Loss of acuity
Sensitivity to glare
Contrast sensitivity
Characteristics
Diabetic retinopathy
Glaucoma
Retinitis Pigmentosa
http://faculty.washington.edu/chudler/vispath.html
Processing
http://www.visionsimulations.com/
Fi ld Lo s
Considerations
Considerations
Considerations
Full transcript