How Much Do You Really Know About Your Eyes?

You use your eyes every single day, but how much do you know about them? Take a few minutes to test your knowledge and learn more about how your eyes work:

What Does The Cornea Do?

The cornea is the outer covering of the eye. It has many layers to protect the rest of your eye from dirt, debris, and scratches. When you look at things, light is focused in the cornea. If you have trouble focusing, your cornea may need to be surgically reshaped.

What Is The Colored Part Of The Eye Called?

The colored part of your eye is called the iris. The black part of the eye is called the pupil The iris is the area around the pupil that controls how wide the pupil opens, which therefore, controls how much light is let into the eye.

Can Your Eyes Change Shape?

Yes. Parts of your eyes do change shape. The lens of the eye is behind the pupil. It is attached to muscles, which change the shape of the lens depending on the amount of light that is let in.

What Is The Retina?

The retina is at the back of your eye and it is attached to the optic nerve. When light is focused, it hits the retina where the light is transmitted in to a signal that tells your brain what you see. The back part of the retina is called the macula and the macula helps your eye interpret details.

What Are Rods And Cones?

You may have heard of rods and cones, but do you know what they do?

Rods and cones are the photoreceptors in your retina. You have many more rods than cones in your eyes. Rods are more sensitive to light and help you see in low light, but they do not help you see color. Cones are capable of color vision and more detailed vision in general. Rods and cones work together with the rest of your eyes to help you see things and understand what you see.


To learn more about how your eyes work, schedule an appointment with the qualified ophthalmologists at the Retina Consultants of Hawaii.