CVI- Cortical Vision
Impairment and Grace
By Grace’s mother
This is my interpretation of CVI as it pertains to MY daughter. This is NOT medical advice for anyone else's situation.
I have put it here on my daughter's website to get the information out to the people who work with my daughter.
If you have stumbled upon this page, you can choose to read the information at your your risk.
Looking through Grace’s eyes with CVI
What do you see in these pictures?
Pic#1
Pic#2
Pic#3
Spoiler Alert:
Pic#1 Dalmatian dog in center
Pic #2 Snowy bird
Pic#3 Bison drinking water, center
Pic#1 Dalmatian dog in center
Pic #2 Snowy bird
Pic#3 Bison drinking water, center
(Pictures from google images)
After reading the spoiler alert- You can probably see the
objects in these pictures.
We can “dis-embed” the objects because we have “memory” of
each of those objects.
Kids with CVI don’t know what they’re looking for because
they have don’t have that memory piece developed in their brains. For Grace, what you first saw is what Grace
sees and will continue to see unless we help facilitate for her vision.
Grace can perceive/see information but cannot “sort” it out or categorize it.
Another example: Grace may recognize her toothbrush (even in
a good picture) AND she may recognize her toothpaste but she probably cannot
separate the two items as in the second or third picture. (Pictures from google images, not endorsing any brands)
The CVI Range: The
CVI Range measures visual function.
0
______1_______2_______3_______4______5_______6______7______8______9________10
Phase I (0-3) Phase II (3-7) Phase III (7-10)
Roman- Lantzy's Three Phases of the CVI Range
Phase I—The child is focusing on building visual
behaviors, without yet incorporating visually guided reach. These children can
only see when there are no visual distracters within a carefully controlled
learning environment.
Phase
II—The child begins to integrate vision into daily routines,
including developing skills of visually guided reach. These children need
environmental adaptations but they can visually attend amidst mild competing
visual and auditory stimuli.
Phase III—The child progresses to develop and
integrate more typical visual functioning. The child can see within a
non-adapted, typical learning home or school environment
(Edelman, 2006; Roman-Lantzy, 2007)
Roman-Lantzy's CVI Range systematically tracks the
10 behaviors on the CVI Range. Following evaluation, Roman-Lantzy
recommends specific intervention strategies and environmental adaptations to
resolve systematically the child's CVI behaviors and symptoms (Roman-Lantzy,
2007)
Roman-Lantzy 10 Characteristics/ Symptoms of CVI (Adapted
from Roman-Lantzy, 2007)
- Color preference
- Need for movement
- Visual latency
- Visual field preferences
- Decreased visual complexity
- Light-gazing & non-purposeful gaze
- Decreased distance viewing
- Atypical visual reflexes
- Decreased visual novelty
- Decreased visually guided reach
Each characteristic is
different depending where the child with CVI scores on the CVI Range.
CVI RANGE for Grace (8/2013)
CVI Rating I: 4.25
CVI Rating II: 7.0
Grace’s scores put her into Phase II
Interventions
The following chart, is a selection of recommendations from
Roman’s book and from the workshop, I attended. This chart is a starting point,
offering ideas and suggestions to help Grace use her vision.
Interventions for CVI must be incorporated
within the routines and activities of Grace’s day and not used as
independent activities. Integrating vision into all activities will give Grace
repeated practice using her vision each day. Practice will help her improve her
vision skills. The interventions are based on the characteristics/symptoms of
CVI.
CVI Interventions
Recommendations for Grace
General
Recommendations
|
Within each routine: walking the halls, going to class,
participating in class, playground, bathroom, therapy sessions, etc.
integrate vision into the activity by using familiar objects, favorite
colored objects, look first & touch, favored visual field (Right-1:00),
among the other suggestions on this chart.
If Grace doesn’t look at a presented toy or activity item,
go back to a more familiar object to get her to look. If she looks, you are
doing it right. If she does not look, simplify- (choose a favorite toy or
item, favorite color), look to see if something else is wrong (tired, hungry,
loud or humming noises). Before assuming that Grace can’t look at something,
first ask, “What has changed in the environment?”
You can first “practice” with familiar items and then move
on to novel items, to prepare Grace’s vision.
The goal is to get Grace to use her vision to learn about
her environment and to use her eyes and hands together. Do this by adding her
favorite color (BRIGHT ORANGE or YELLOW) to items, places, books that Grace
will come into contact during her day.
Wherever Grace is during her day, be sure there is
something she likes to look at. Place something she likes to look at near her
in the classroom, at therapy, in the bathroom, etc.
Use a black or dark navy felted board as a background to
items you want Grace to look at.
Talk to Grace about her environment. Tell her what she can
look for in her environment. Look for things that stand out in Grace’s
favorite colors or that have a movement characteristic to them.
|
Color Preference
|
BRIGHT ORANGE & BRIGHT YELLOW (& bright Red can
sometimes work)
Grace especially likes the grocery sacks from the Grocery
Outlet. Even when not rattled, the color catches her attention.
Use these preferred colors in routine activities
throughout Grace’s day.
Add preferred color to direct Grace’s attention.
Highlight/Outline specific items in picture books with
orange or yellow.
Add preferred color to give Grace’s visual information-
(Ex. #1- Point out and teach Grace bright-colored
landmarks around the school to orient her to where she is. Ex. #2- Add
preferred color to line pictures on worksheets or in books to help her
interpret black & white pictures)
Use a preferred color spoon, cup, mat, object, toy, etc.
Add orange or yellow tape to the door jam of the resource
room or add a large yellow or orange circle shape- anything that can help
Grace ACT on her environment
Stick with colored toys with only 2-3 primary colors.
Introduce new colors by adding a movement quality to them.
(Ex. Show the green Christmas tree by shaking it slightly
as you talk about the tree and its properties.)
Try also shiny Orange or shiny Yellow or shiny Red
|
Need for Movement
(Shiny and
reflective materials are considered to be of the movement characteristic.)
|
Use shiny materials on switches to encourage Grace to look
before activating.
To encourage Grace to attend to an object at a distance,
move the object
(Ex. To get Grace to look at the flag, wave the flag for
her)
If you show Grace a toy and she doesn’t look at it, try
moving slightly.
If you want Grace to look at 2 different objects- slightly
move each one alternately, so she looks at each one.
Make a picture book using Mylar or bright shiny shapes to
get Grace’s attention on the book.
|
Visual Field
Preference
|
Grace prefers her RIGHT visual field at approximately
1:00-2:00. (as on a clock)
Present items here to grab her attention. Present more
complicated toys here.
Present faces here and novel items, here.
Left Visual Field: more difficult for Grace. Present
highly motivating toys here. And simple, preferred color or shiny objects
here.
Lower Visual Field: May need to add more movement and
bright colors here.
Could also use a slant board to present objects a bit
higher in lower visual field.
Use favorite toys/items when Grace is in a challenging
postural position.
|
Visual latency
|
GIVE GRACE TIME TO LOOK. Wait, wait, wait, wait, wait, and
wait.
After speaking about an item, Be quiet. Give Grace time to
look.
or
Present an item and wait. Give Grace a chance to look.
You can move the object slightly to encourage looking.
Looking is not automatic for Grace. She may very well see
but she may not be processing for learning or acting upon. Present the object
and WAIT.
Don’t continually tell Grace to look with her eyes. Just
add movement or simplify the environment or the task even more.
|
Light-gazing and
non-purposeful gaze
|
Give Grace another visual target when she is staring at
the lights. (Ex. Use a preferred colored balloon or ribbon wand or something
to distract her attention.
Put light source behind Grace, so light shines on the
activity and is not a distraction. This includes putting Grace’s back to the
window.
Never encourage looking directly at a light, a flashlight,
etc. Light should only support the activity.
You can use light to direct attention to an object, a
picture, etc. Use a flashlight from behind Grace & point it on the item.
Turn off overhead lights as necessary
Try using a light box to if it helps Grace improve the use
of her eyes and hand in looking and reaching.
-A light box can be used as a stage to illuminate objects
from behind
-A light ox can be a big motivator for Grace to look &
where to look
*There is a lot more about light boxes & you can ask
me for more information if you’d like to look into using a light box further
|
Difficulty with
distance viewing
|
Use bright, colorful, naturally occurring landmarks in the
hallway to help Grace know where she is and where she is going.
Explain to Grace what to look for in a complex
environment. This simplifies the task for her. (Ex. Look for the red poles in
the cafeteria. Talk about the poles, the red color- compare the red color to
a favorite item that is red, etc.) and the feel, and height, etc. Give her
descriptive words.
If the teacher has a book at the front of the classroom or
the circle, that she is sharing with the class, give Grace one at her desk to
look at up close too. Here you can also point out distinct items to look at
or use a black cardboard window viewer to minimize the details on the page.
|
Difficulties with
Visual Complexity
|
Use non-shiny black background (Ex. black felt board) or
at least a solid- colored background.
If Grace does not look at a toy or person-, look at the
environment or simplify the task, visually. (Ex. There are many ways that a
task can be too complex for Grace, including: too many toys out at a time,
sounds, lights, movements, being asked to perform a motor task while looking,
other people, distractions, etc.)
Use favorite objects when working on motor skills.
Review goal of task: Is it motor? Being quiet? Looking?
If task is difficult, make the visual demands easier.
Reduce complexity in visual tasks by presenting only one
object at a time on a plain background.
Be aware of the background, even your own clothes or what
is behind the teacher.
Reduce complexity by having Grace in a very supported
position when you want her to look or especially look and reach.
Verbal cues are ok if information is also provided.
(Ex. “Look, the ball is red.” This gives Grace more
information than a command that she look- now she will know what she is to
look for.)
If motor demands are high, make vision easier.
Reduce complexity by limiting background noise:
conversations, music, hums of machinery, etc.
If using a mirror, watch for complexity within the mirror
image.
Reduce complexity by explaining what is going to happen
next, to prepare.
Simplify picture books by using a piece of black cardboard
with a cutout window to highlight specific portions of the picture or text.
Reduce amount of information on a page to reduce visual
clutter.
Keep Grace’s workspace simple & free of visual distractions
Encourage Grace to look at your face. You may speak to get
her attention, then be quiet and wait for her to look. Then speak again.
Think about what is behind you when asking encouraging her to look at you.
Ex. Place a plain background behind the sink to help Grace
attend to the faucet.
LIMIT HAND-OVER-Hand prompting. If an adult moves Grace’s
hands, she does not look at what she is doing.
|
Difficulty with
visual novelty
|
Introduce novel toys or objects that are similar in color
& properties to the toys Grace consistently looks at. If you present a
new item and Grace is not looking at it, go back to a more familiar item to
get her to look and then try the new one.
Present novel objects that are part of routine activities.
Repeated use will make the object familiar and help Grace
look at it.
Familiar is easier to look at.
Limit novelty. Give practice with the things Grace does
like to look at. (Grace’s brain is learning to use vision information and things
that are familiar are easier for her to look at. She will not get bored. Use
the same objects in each routine activity.)
Allow Grace to touch and hold novel items to help her
learn about them and visually attend.
|
Absence of visually
guided reach
|
Be sure Grace looks at an object before she reaches.
Remember to use color, movement and patience to get her to look rather than
commanding her to look.(You can explain what you both are going to do but
then be quiet and give Grace time to look.)
Refrain from talking to Grace during this action.
Try not to be super excited when she does touch the item.
After she has looked and touched then you can give quiet encouragement. The
reward should become intrinsic in Grace that looking gives her something.
When the whole activity is over, then you can uber-praise Grace.
You can say, “Quiet hands” or “waiting hands” or “hands on
tray/table” or “hands on belly” so Grace will look first then reach.
Allow for latency and use movement to encourage Grace to
look before touching.
Grace still has a little of this from Phase I- She will
look, look away, look again pattern before reaching out to touch. It’s ok,
let this happen. If Grace gets distracted by this pattern, use movement of
the items to regain her attention.
Teach by example. Play a game where you must look before
looking and reaching with Grace.
Take note of what toys Grace does look at and reach.
|
How to use the chart:
CVI Interventions Recommendations for
Grace
You may be thinking how in the world, can you incorporate
all those recommendations into Grace’s school day. Here is a way to simplify
and begin to incorporate some of the suggestions. Try just 4 times a day at
first: Think of 2 separate activities in the morning and 2 activities in the
afternoon that you can incorporate CVI interventions.
Three things for planning:
1. Time of Day
2. Activity at that time
3. CVI adaptations to the activity
Use the CVI Planning
Table
Daily Schedule:
time and activity
|
CVI Characteristic
|
CVI adaptations for
this activity
|
8:05 AM- getting out of van at handicap parking space
|
Distance viewing, color, complexity
|
Teach and learn the fire hydrant as a landmark upon
arriving at school
|
10:00 AM-traveling around the school
|
color, complexity, visual field, distance viewing
|
-Teach & learn landmarks like the red poles at the
cafeteria,
-highlighting the drinking fountain by adding an orange
post-it note near it or on it.
-Placing an orange or yellow flower by Mrs. Sinnet’s
window.
-Talk about what to expect & what to look for.
|
10:30 AM- diaper changing/toiletry & self-help hand
washing
|
color, visual field, latency, complexity, novelty
|
-present toilet paper on black background in preferred
visual field until learned, then move it around, same with soap for hand
washing,
-put black background behind water faucet
-present paper towel on black background
-talk about what Grace can see when hand washing &
playing in water
- show Grace her diaper on against a black background
before putting it on
-add shiny orange/yellow color to the tiles by changing
table
|
1:00 PM matching items
|
latency, complexity, visually guided reach, color, visual
field
|
-offer one object at a time on a black background.
-encourage looking at both items independently by slightly
moving each one independently
-offer the “wanted” match in the preferred color &
visual field
-give verbal prompts before & after looking, not
during viewing
|
1:30 PM Physical therapy
maybe a different day- it could be ride the bike &
hold the handle
|
~nothing today~
color, complexity, visual field
|
Today’s goal is to stand.
Vision will remain simplified
Consider making the bike handles yellow or orange and/or
put a black background behind them.
|
Pinterest- search for CVI






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