Cyclovergence

When you look at something with both of your eyes, they work together so that you can see one clear picture. This is called "binocular vision." When you look far away, your eyes stay straight ahead and work together perfectly. But when you look at something up close, your eyes have to move inwards towards each other, to focus on the object. This is called "convergence."

Now imagine that you're looking at a spinning object. Your eyes have to track the object as it moves, right? Well, when you do that, something really cool happens. Your eyes still have to move inwards towards each other, to make sure you're seeing the object clearly. But at the same time, they also have to rotate outwards to keep up with the spinning. This is called "cyclovergence."

It's like if you were riding a bike and also had to turn your head left and right constantly to keep up with someone else on a bike next to you. It takes a lot of coordination and skill! Your brain has to work really hard to make sure your eyes are moving in the right way to see the spinning object clearly.

And that's what cyclovergence is! It's when your eyes have to move in different directions at the same time, to keep up with a spinning object. It's really important for your vision, because it helps your brain create a clear, single image of what you're looking at.