Information is shared at a general level. Most CVI students like the color red. If you want the student to look at something, try using red. Moving the object slightly in the peripheral field might also help. Many teachers will remember the student might like red and they will probably make an attempt to select red materials when they can.
Specific consultation tends to more effective.
In this type of consultation the specialist assesses, recommends, demonstrates in a natural context, and evaluates results. CVI students tend to like red. Lets use a red scoop dish at mealtime instead of the cream colored cafeteria tray. If he can see the bowl, it may be easier to get him to scoop. We may need to position the bowl slightly to the left and move it a little at first.