The medial eye fields are like special televisions in our brain that help us control where we look with our eyes. Imagine you have a remote control to move your eyes around, and the medial eye fields are like the part of your brain that tells your eyes which way to go.
When you want to look at something, your brain sends a message to the medial eye fields that tells them which direction to move your eyes in. They then send a message to the muscles in your eyes, which cause them to move in that direction.
Just like how you need to aim with a bow and arrow or a basketball hoop, the medial eye fields help us aim our eyes at things we want to look at. They're a really important part of how we see the world around us!