How the Eye Works

The Eye

Light rays enter the eye through the cornea (transparent layer of tissue). The cornea takes the rays of light and bends them through the pupil (dark round spot in the center of the colored iris).

The lens of the human eye is similar in operation to the lens of a camera. Located directly behind the pupil, its function is to focus incoming light rays onto the retina at the back of the eye. Images are transmitted to the brain as electrical impulses via the retina and the optic nerve.

Anatomy of the Eye

The eye has been called the most complex organ in our body. It’s amazing that something so small can have so many working parts. But when you consider how difficult the task of providing vision really is, perhaps it’s no wonder after all.

Diagram of the Eye