Eye Anatomy Directory
The human eye is the organ that gives us the sense of sight to which we see the world around us. The eyes are made up of several structures that allow us to determine what we are seeing. We use our eyes to see colors, shapes, and words in just about every activity that we do like working, reading, watching television, walking through the park, and driving our cars. The anatomy of the eye is what gives us what it is that we see and each part of the eye has a specific function that aids in the process of vision. Learn about the parts of the eye and how each one works to interpret everyday objects.
How the Human Eye Sees
The human eye is an amazing organ. WebMD explains how it works.
Eye Anatomy and Function-Topic Overview
The eye is shaped like a round ball, with a slight bulge at the front.See a picture of the eye.The eye has three main layers. These layers lie flat against each other and form the eyeball. The outer layer of the eyeball is a tough, white, opaque membrane called the sclera (the white of the eye). The slight bulge in the sclera at the front of the eye is a clear, thin, dome-shaped tissue called the cornea. See a picture of the cornea.The middle layer is the choroid. The front of the choroid is the colored part of the eye called the iris. In the center of the iris is a circular hole or opening called the pupil.The inner layer is the retina, which lines the back two-thirds of the eyeball. The retina consists of two layers: the sensory retina, which contains nerve cells that process visual information and send it to the brain; and the retinal pigment epithelium (RPE), which lies between the sensory retina and the wall of the eye.The inside of the eye is divided into three sections called
Cornea Transplant Surgery: What You Need to Know
Learn about why you might need one, what the different procedures are, and what you can expect after a corneal transplant.
Surgery to treat strabismus changes the position of the eye muscles to adjust the position of the eye. After surgery, both eyes will be able to focus on the same point at the same time.
Slideshows & Images
The Eyes (Human Anatomy): Diagram, Function, Definition, and Eye Problems
WebMD's Eyes Anatomy Pages provide a detailed picture and definition of the human eyes. Learn about their function and problems that can affect the eyes.
Slideshow: What Eye Problems Look Like
What do nearsightedness, farsightedness, or going blind look like? See these views and take an eye test in this slideshow from WebMD's medical editors.
Eye Structures (Front and Side Views)
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Quiz: Eye Fact or Fiction
Do glasses make your eyesight worse? Can carrots help your vision? Take this quiz and show us that you know how to sort eye fiction from fact.
Eye-Q Test: How to Treat Common Injuries
What’s the best way to treat a black eye, a scratched cornea, or other eye injuries? Take this quiz to see how much you know.