The ability to track moving objects smoothly (smooth pursuit) can be trained to improve vision.

“You can actually take a few minutes each day, or maybe if you don't do it each day, you could every third day or so, and actually just visually track a ball. Sometimes it's moving in and kind of an infinity symbol. Sometimes it's more of a sawtooth. Sometimes it's changing speed. Sometimes the cue that you're following, the little target, is dilating and contracting.”

“You can actually train or improve your vision by looking at smooth pursuit stimuli, and that sounds really boring. What you can do is, and I'll provide a link to some that I think are pretty good that are used in various clinics, ophthalmology and optometry clinics. You can actually take a few minutes each day, or maybe if you don't do it each day, you could every third day or so, and actually just visually track a ball.”

“Now, our visual system is exquisitly tuned to motion. Not just our self-generated motion, but the motion of things around us. And one of the things that it does is something called smooth pursuit. Smooth pursuit is our ability to track individual objects moving, as the name suggests, smoothly through space in various trajectories. You can actually train or improve your vision by looking at smooth pursuit stimulating.”