Twice as Good!Have you ever wondered why you have two eyes? The answer is simple! Having two eyes helps you see things better. Here are some advantages of having two eyes.
With two eyes you get a wider view. Your left eye lets you see things on your left side. With your right eye, you can see what is on your right side. But when you use both eyes, these two views are combined. You can see almost twice as much!
Having two eyes helps you judge distances, too. Let’s try an experiment. First get two pencils. Hold one pencil sideways in each hand. Then, close one eye and try to touch the pencils’ erasers together. Can you do it? Try it again with both your eyes open. It is much easier to do now!
We also have two eyes to protect our vision. Each eye works as a backup for the other one. Sometimes an accident or a disease causes people to lose sight in one eye. But thanks to the other eye, a person does not become totally blind. So having two eyes can help save people’s vision, too.
CÓ THỂ BẠN QUAN TÂM