VO: Have you ever wondered how your eyes actually work? Most people have no clue about the inner workings of the eye.

VO: So, we'd like to share our expertise and explain the complex yet fascinating way our eyes let us see the world.

VO: This is your eyeball. It’s a bilateral and spherical organ that holds the structures that let us see.

VO: As we look at an object, light reflects off of it and travels into the eye through the cornea.

The cornea is a clear, dome-shaped layer in the front of the eye. It allows the objects you look at to be carried into the interior of the eye in the form of light waves.

VO: After the light waves pass through the cornea, they travel through a liquid called the aqueous humor.

VO: The light waves bend and refract as they pass through the next step on their journey, a coloured, ring-shaped membrane called the iris. This is where we get the unique colour of our eyes.

VO: The iris has a dark, adjustable circular opening in its centre called the pupil.

VO: The pupil controls the amount of light that can enter the eye by expanding or contracting, just like the shutter in a camera lens.

VO: Situated behind the pupil is a transparent, disc-like structure called the lens. The lens helps us focus on objects at different distances, automatically adjusting its shape depending on whether we're looking at something near or far away.

VO: After passing through the lens, the light waves must travel through a gel-like substance called the vitreous humor to get to the retina at the back of the eye.

VO: The optic nerve sends these impulses to the brain,

VO: where they're processed and translated into all the images we see,

VO: from the moment we wake up and open our eyes,

VO: to the end of the day, when we shut them to go to sleep.

VO: See, it's that simple.