Our vision allows us to be aware of our surroundings. However, many people often wonder how do the eyes work?  Eighty per cent of everything we learn is through our sight.

Your eye works in a similar way to a camera. When you look at an object, light reflected from the object enters the eyes through the pupil and is focused through the optical components within the eye.

All the different parts of your eyes work together to help you see. Our eyes are remarkable on how they work capturing images and relaying them to our brains.

Anatomy of the Eye

First, light passes through the cornea (the clear front layer of the eye). The cornea is shaped like a dome and bends light to help the eye focus.

Some of this light enters the eye through an opening called the pupil (PYOO-pul). The iris (the colored part of the eye) controls how much light the pupil lets in.

Next, light passes through the lens (a clear inner part of the eye). The lens works together with the cornea to focus light correctly on the retina.

When light hits the retina (a light-sensitive layer of tissue at the back of the eye), special cells called photoreceptors turn the light into electrical signals.

These electrical signals travel from the retina through the optic nerve to the brain. Then the brain turns the signals into the images you see.

Your eyes also need tears to work correctly.