You might have heard the saying "the eyes are the windows of your soul", and yes there is some truth to that. After all you live what you see.
What makes your eyes see? well everything has to do with light, meaning light basically transmits the color (data) into your eyes.
It first starts with the cornea (the clear part of your eyes) and goes thru a process we call refraction, the bending of light. Light will then travel thru the pupils and reach the natural lens of the eye where it will then refract some more to reach the back of the eye and hit the part of the retina called the macula. This is where the magic happens, the image that you see is actually reverse upside down, your brain process all the information and flips the image so you see the image right side up.
I will be posting more on this subject, Anatomy, diagnoses, structures to further educate the masses, If you have any questions or suggestions don't forget to comment!
Disclaimer: I have worked in the world of ophthalmology for close to a decade, this is how I interpret what I know.