In order to improve your hand eye coordination, you should practice it in more times. That is the simple way to help you do this. You could also eat food with vitamin C and A to moisture the eyes. In addition, you could not make your eyes get tired often which may delay the reacting time of your eyes.
Sounds like you are going to make yourself stronger. Anyway it would be wise for you to increase your agility as well as your coordination, such as your hand eye coordination because it would benefit both your body and your mentality. Here I would like to recommend some games, such as video games or some shooting games which could improve that coordination. Also, you should try to improve your reaction through various methods.
Well, there are some ways to improve the hand eye coordination. So you can just have a try. First, you can just grab some coloring books and crayons and color away. Of course, in this way, it may bring you back to childhood, and it will also improve hand-eye coordination, because it is a creative way to control your hands and fingers to do what your eyes coordinate them to do within the confines of the page. So just do it. Also, you should pick up a baseball, softball bat and take it in aim. You should remember that it requires hand-eye skill to hit a ball with a bat. If you know how to improve eye hand coordination, you can become better at your chosen sport. Anyway, just have a try.