Did you know that your clear view of the world, the one that allows you to read, drive and recognize faces, relies on the health of your retinas?
So, what is the retina and how does it help us see?
How We See
Think of your eye as a camera. Light enters through the cornea and is controlled by the iris and pupil, which function like a camera shutter, opening (dilating) and closing to allow more light in dark conditions and less light in bright conditions.
This focused light is directed onto the retina, a thin layer of light-sensitive nerve tissue that lines the back of the eye, like film in a camera. Images are focused at its center (known as the macula) and converted into electrical impulses that are carried to the brain by the optic nerve, where they are translated into sight!