I had a little boy with CVI who loved to sit in the ball pit at school and throw balls without looking to hear noise. This was auditory play. He especially liked to throw the balls against the closed window blinds to get that nice metal sound. The staff really wanted him to stop.
I decided to use it as an opportunity to make it a visual activity as well. I hung an aluminum pan by a sting against the wall in front of him. He noticed the movement of the slightly swinging pan (movement characteristic drew his visual attention at distance). He began to aim towards this target that had a much more interesting sound AND movement. He was locating it at 6-8 feet, aiming with sustained gaze and tossing like a pro! Taking advantage of an activity that a child already enjoys and building it into a visual event is an excellent way to build visual skills.