Yes we work on tracking ball from release to catcher's mitt.
I did not read the links that Ken posted but here are my thoughts on vision and is what I have been working with my DD on. I believe trying to track the ball by focusing directly on it is not correct. Using the central/focal vision doesn't give the brain the information needed to recognize speed or movement of an object. Central vision is used more towards noticing fine details and identifying objects. The way I have been working with my DD on this is by trying not to focus on anything while at bat and try to open up her vision so to speak. By not focusing on the ball and opening up your field of vision it will give the brain more information by having a back ground and so on. I have noticed with my DD when she uses her vision this way she even swings the bat differently. When I personally try it myself it feels more like a reaction then a contemplated swing. Just my opinion maybe it's something you can play around with. Good Luck.
Sent from my iPhone using Tapatalk