My student with CVI was assessed using the CVI Range (Roman-Lantzy 2007). Results assessed him with these characteristic needs:
- Red is his favorite color: He sees this color faster, looks longer and sees it at greater distances.
- Movement is important to gain his visual attention.
- Latency: his ability to locate items in the environment requires extra times to locate and to understand what he is looking at.
- Light is important to his visual attention
- He locates familiar items faster than new items.
- His best visual field is his left at eye level: He finds things faster, looks longer and sees things at greater distances on this side at this viewing plane. He places materials in this visual field at eye level if I hand him an item.
- He locates things best between 3-5 feet away.
- He finds items against plain backgrounds but struggles to locate or understand materials against complex backgrounds.
For moving through the school, the O&M specialist created visual landmarks for these needs:
- The arrow was large, red and shiny (shiny looks like movement as it captures the light). This addressed his characteristic needs of Color, Light and Movement (Roman-Lantzy)
- Locating the arrow was practiced again and again several times per day in his better left visual field at 3-5 feet at eye level. This addressed his characteristic needs of Novelty, Latency, Visual Field and Distance. (Roman-Lantzy)
- The arrow was placed in a non-complex area of the school wall at a turn indicating “turn here” to go back to class. This addressed his characteristic needs of Complexity. (Roman-Lantzy)
After 2 months, my student sees this familiar, highlighted travel cue at greater distances, in both visual fields and uses this to travel back and forth to buy his snack daily.