• Rainbow eye closeup
  • yellow

You don’t see what you think you see.

What do you see in this image?


If you said yellow, you’re mistaken.

What you’re actually seeing isn’t yellow, not really, it’s red and green. You see, the monitor you’re looking at can only make red, blue, and green light. Now, look around the room. Do you see something yellow? A shirt? A piece of paper? Those things are really yellow. They absorb all the other colors of light and reflect the yellow. The monitor mixes the colors of red and green together in just the right amounts to make it look like yellow. In short, it’s lying to you.

But that’s okay, because your eye can only really see red, blue, and green.

The cones in your eye, the bits that see color, come in only three varieties- red receptive, blue receptive, and green receptive. Anytime another color hits your retina, the cones only respond a little bit. It’s your brain that figures out what color something is. It takes the information from your eyes and figures that if there is this much red and that much green then it must be yellow, and so the object looks yellow. Amazingly, using only these three color receptors many experts believe that the average human can discern up to 10 million colors- at least so long as they have healthy eyes.

And remember, whatever you happen to be looking at, whether a real color or a fake one, the vast majority of what we know of the world comes to us through our eyes. Take care of them. The professionals at Palm Beach Eye Center are here to help you do just that.