May: The Cornea
One of the most essential part of our eyes is the cornea. The cornea is responsible for exactly two-third of your eyes optical power. Located at the front of your eye: the cornea is the clear part that covers other essential parts of the eye such as the iris and pupil. How exactly does this clear part of our eye work? The cornea is responsible for focusing light onto the retina. When the light hits the cornea, it bends it onto the lens. The lens in turn refocuses the light onto the retina.
The cornea also acts as a protective layer against germs and dirt and other agents that could harm your eyes. The cornea is made up of 5 layers but is very unique as it does not contain a blood supply. The cornea relies on tears for it’s nourishment. This is why it is very important to treat dry eye syndrome as the tears are so important to the health of your cornea and in turn, your vision.