This, furries, is what your retina looks like.

Many people don’t realize, but when you look into someone’s eyes, you’re literally looking into them! The pupil is a hole, around which the iris contracts or relaxes to allow in more or less light, much like the aperture of a camera. If you were to shine a light into the pupil as you peer in, you would see the back of their eyeball—the retina. This is exactly what ophthalmic photography does. Using a special light that shines directly through the lens of a camera system and into the pupil, we get a glimpse of what’s inside the human eye. The image of the retina is reflected back through the lens and onto a film plane or sensor, and thus, a retinal image.

Also, interesting fact: When you take a picture of someone and they have "red eye," you are seeing the pigment of their retina reflecting back at you.