Your eye is round and made of three main layers that form the eyeball. The eye’s function is to let you see, capturing images like a camera and turning them into data that it sends through the optic nerve to the brain, where it is translated back into images.
The eye has three main layers:
- Sclera: The outer layer of the eyeball is a tough, white, opaque membrane called the (the white of the eye).
- Choroid: The middle layer is the choroid. The front of the choroid is the colored part of the eye called the iris
- Retina: The inner layer consisting of two layers:
- Sensory retina, containing the nerve cells that process visual information and send it to the brain
- Retinal pigment epithelium (RPE), the layer between the sensory retina and the wall of the eye