I did not write this information. This is an excerpt from a CVI handout our agency provides education teams. You should always consult with your pediatrician and ophthalmologist for specific questions relating to your child.
- Most children have overall neurological difficulties
- May have seizures
- Consistently inconsistent
- Cortically Blind-don’t always have intact memories damage to memory bank (oxygen deprivation) - Cognitive evaluation of experiences is based on memory
· Children may have central auditory dysfunction –therefore no symbolic language
- Integration of sensory information is disrupted - child needs processing time to receive sensory information and output response
- Pervasive brain damage
- Disorganized, visual information maybe received though may not be organized or understood by the brain.
- Children with CVI often don’t demonstrate habituation, a neurological process by which active attention to a stimulus decreases over repeated trials. Children with CVI can’t sort out what is most important; therefore some may always be overly responsive.
- Often respond and react rather than interact.
- Arousal level can be the opposite of what it appears to be. i.e. the child may fall asleep because he is overly aroused.
- Has an expressionless face as if staring right through you
- Has difficulty sorting out important vs. unimportant information.
- Has difficulty anticipating what will be happening.
- First response to experiences is emotional or reactive
· Fatigue is often present because of overload and inability to screen incoming sensory information
- When reaching for objects, students with CVI often look at object, turn eye gaze away and then reach with hand. Difficulty organizing visual information and reacting motorically.
- If life is perceived as stressful, frustrating, or confusing by the child a physical response may occur i.e.: increased heart beat, slowed digestion. If the child is always on chronic alert the immune system can break down