Good...but

I do like this app as it is simple but there should be an option to customize your own eye exercises and speed them up more. Here are some other ideas:
-The ball going in circles-small circles and large.
-Another would be the ball going in loops.
-Name outlines, large fonts and small fonts.
-Zig-zags.
-Building outlines, etc.

H22h about Eye Exerciser - Eye Training